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Buy Concave Cuts Gems

(636)
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11.52 ct Yellow Quartz, 16 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 11.52 carat weight Quartz

11.52ct1 Piece
$ 63.36
16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 11.52 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16 mm Quartz
Quartz Color: Light Pineapple Yellow Quartz
Quartz Clarity: VVS-VS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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5.62ct1 Piece
$ 80.87
12.5 x 9.4 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 5.62 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.5 x 9.4 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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69.73ct1 Piece
$ 488.11
31.4 x 20.9 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 69.73 ct Topaz
Topaz Shape: Oval Concave Cut Topaz
Topaz Size: 31.4 x 20.9 mm Topaz
Topaz Color: Swiss Blue Topaz
Topaz Clarity: IF Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 1
Topaz Certificate: GemSelect
Product Description:
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9.05ct1 Piece
$ 130.23
12.6 x 11.9 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 9.05 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.6 x 11.9 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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61.96 ct Yellow Quartz, 30.7 x 23.8 mm Oval Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 61.96 carat weight Quartz

61.96ct1 Piece
$ 169.03
30.7 x 23.8 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 61.96 ct Quartz
Quartz Shape: Oval Concave Cut Quartz
Quartz Size: 30.7 x 23.8 mm Quartz
Quartz Color: Pineapple Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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19.18ct1 Piece
$ 172.62
20.9 x 12.9 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 19.18 ct Ametrine
Ametrine Shape: Cushion Concave Cut Ametrine
Ametrine Size: 20.9 x 12.9 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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14.53 ct Yellow Quartz, 16.1 x 16.1 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 14.53 carat weight Quartz

14.53ct1 Piece
$ 64.10
16.1 x 16.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 14.53 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.1 x 16.1 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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12.31 ct Yellow Quartz, 15.7 x 15.8 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.31 carat weight Quartz

12.31ct1 Piece
$ 54.30
15.7 x 15.8 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.31 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 15.7 x 15.8 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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12.91 ct Octagon Concave Cut Smoky Quartz, 15.8 x 15.8 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 12.91 carat weight Smoky Quartz

12.91ct1 Piece
$ 35.51
15.8 x 15.8 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 12.91 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 15.8 x 15.8 mm Smoky Quartz
Smoky Quartz Color: Warm Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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18.5 ct Octagon Concave Cut Smoky Quartz, 18 x 17.9 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 18.50 carat weight Smoky Quartz

18.50ct1 Piece
$ 51.15
18 x 17.9 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 18.50 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 18 x 17.9 mm Smoky Quartz
Smoky Quartz Color: Light Earthy Brown Smoky Quartz
Smoky Quartz Clarity: VVS-VS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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6.58 ct Oval Concave Cut Smoky Quartz, 14.1 x 12.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 6.58 carat weight Smoky Quartz

6.58ct1 Piece
$ 27.07
14.1 x 12.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 6.58 ct Smoky Quartz
Smoky Quartz Shape: Oval Concave Cut Smoky Quartz
Smoky Quartz Size: 14.1 x 12.1 mm Smoky Quartz
Smoky Quartz Color: Chocolate Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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12.53 ct Yellow Quartz, 16.2 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.53 carat weight Quartz

12.53ct1 Piece
$ 50.45
16.2 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.53 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16.2 mm Quartz
Quartz Color: Yellow Green Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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6.56ct1 Piece
$ 94.40
15.4 x 8.8 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 6.56 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 15.4 x 8.8 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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13.98 ct Yellow Quartz, 16.1 x 16.1 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 13.98 carat weight Quartz

13.98ct1 Piece
$ 61.67
16.1 x 16.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 13.98 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.1 x 16.1 mm Quartz
Quartz Color: Lemon Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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18.41 ct Yellow Quartz, 18.1 x 18 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 18.41 carat weight Quartz

18.41ct1 Piece
$ 101.26
18.1 x 18 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 18.41 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 18.1 x 18 mm Quartz
Quartz Color: Light Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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8.84ct1 Piece
$ 127.21
13.1 x 11.3 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 8.84 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 13.1 x 11.3 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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14.22 ct Octagon Concave Cut Smoky Quartz, 16.2 x 16 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 14.22 carat weight Smoky Quartz

14.22ct1 Piece
$ 39.11
16.2 x 16 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 14.22 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 16.2 x 16 mm Smoky Quartz
Smoky Quartz Color: Light Mocha Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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19.09 ct Yellow Quartz, 18.2 x 18 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 19.09 carat weight Quartz

19.09ct1 Piece
$ 105.00
18.2 x 18 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 19.09 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 18.2 x 18 mm Quartz
Quartz Color: Light Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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7.01 ct Loose Multicolor Mystic Quartz, 10 mm Round Concave Cut From Brazil

Buy Natural Mystic Quartz, Qty: 2 pcs | 7.01 carat weight Mystic Quartz

7.01ct (total)2 Pieces
$ 42.06
10 mm
Item Description
Stone Type: Loose Mystic Quartz
Mystic Quartz Weight: 3.51 ct Mystic Quartz
Mystic Quartz Shape: Round Concave Cut Mystic Quartz
Mystic Quartz Size: 10 mm Mystic Quartz
Mystic Quartz Color: Multicolor Blue Mystic Quartz
Mystic Quartz Clarity: VVS-VS Mystic Quartz
Mystic Quartz Origin: Brazil Mystic Quartz
Mystic Quartz Treatment: Coated
Mystic Quartz Quantity: 2
Mystic Quartz Certificate: GemSelect
Product Description:
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35.77 ct Octagon Concave Cut Smoky Quartz, 18 x 17.7 mm From Brazil

Buy Natural Smoky Quartz, Qty: 2 pcs | 35.77 carat weight Smoky Quartz

35.77ct (total)2 Pieces
$ 150.70
18 x 17.7 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 17.89 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 18 x 17.7 mm Smoky Quartz
Smoky Quartz Color: Light Earthy Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 2
Smoky Quartz Certificate: GemSelect
Product Description:
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9.14 ct Yellow Quartz, 14 x 14 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 9.14 carat weight Quartz

9.14ct1 Piece
$ 50.27
14 x 14 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 9.14 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 14 x 14 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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7.22 ct Marquise Concave Cut Smoky Quartz, 17.1 x 12 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 7.22 carat weight Smoky Quartz

7.22ct1 Piece
$ 29.23
17.1 x 12 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 7.22 ct Smoky Quartz
Smoky Quartz Shape: Marquise Concave Cut Smoky Quartz
Smoky Quartz Size: 17.1 x 12 mm Smoky Quartz
Smoky Quartz Color: Warm Brown Smoky Quartz
Smoky Quartz Clarity: VS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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4.9 ct Yellow Quartz, 11.9 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 4.90 carat weight Quartz

4.90ct1 Piece
$ 19.83
11.9 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 4.90 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 11.9 mm Quartz
Quartz Color: Lemon Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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5.16 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 5.16 carat weight Quartz

5.16ct1 Piece
$ 20.83
12 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 5.16 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 12 mm Quartz
Quartz Color: Lemon Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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14.02 ct Yellow Quartz, 16.1 x 16 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 14.02 carat weight Quartz

14.02ct1 Piece
$ 61.84
16.1 x 16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 14.02 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.1 x 16 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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6.35 ct Marquise Concave Cut Smoky Quartz, 25.3 x 9.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 6.35 carat weight Smoky Quartz

6.35ct1 Piece
$ 44.45
25.3 x 9.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 6.35 ct Smoky Quartz
Smoky Quartz Shape: Marquise Concave Cut Smoky Quartz
Smoky Quartz Size: 25.3 x 9.1 mm Smoky Quartz
Smoky Quartz Color: Medium Light-Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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15.99 ct Yellow Quartz, 18 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 15.99 carat weight Quartz

15.99ct1 Piece
$ 64.55
18 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 15.99 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 18 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS-VS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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15.63 ct Yellow Quartz, 16.7 x 16.6 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 15.63 carat weight Quartz

15.63ct1 Piece
$ 68.95
16.7 x 16.6 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 15.63 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.7 x 16.6 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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25.26 ct Yellow Quartz, 16 x 16 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 2 pcs | 25.26 carat weight Quartz

25.26ct (total)2 Pieces
$ 138.93
16 x 16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.63 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16 x 16 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS-VS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 2
Quartz Certificate: GemSelect
Product Description:
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12.75 ct Yellow Quartz, 16.1 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.75 carat weight Quartz

12.75ct1 Piece
$ 51.34
16.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.75 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16.1 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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9.89 ct Round Concave Cut Smoky Quartz, 15.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 9.89 carat weight Smoky Quartz

9.89ct1 Piece
$ 40.04
15.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 9.89 ct Smoky Quartz
Smoky Quartz Shape: Round Concave Cut Smoky Quartz
Smoky Quartz Size: 15.1 mm Smoky Quartz
Smoky Quartz Color: Light Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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12.86 ct Yellow Quartz, 16 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.86 carat weight Quartz

12.86ct1 Piece
$ 51.78
16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.86 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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5.36ct1 Piece
$ 77.13
14.5 x 8 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 5.36 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 14.5 x 8 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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13.08 ct Octagon Concave Cut Smoky Quartz, 16.1 x 16 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 13.08 carat weight Smoky Quartz

13.08ct1 Piece
$ 35.97
16.1 x 16 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 13.08 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 16.1 x 16 mm Smoky Quartz
Smoky Quartz Color: Deep Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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18.31 ct Yellow Quartz, 18.2 x 18.1 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 18.31 carat weight Quartz

18.31ct1 Piece
$ 80.76
18.2 x 18.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 18.31 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 18.2 x 18.1 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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12.79 ct Yellow Quartz, 16.1 x 16 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.79 carat weight Quartz

12.79ct1 Piece
$ 63.95
16.1 x 16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.79 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.1 x 16 mm Quartz
Quartz Color: Light Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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7.60ct1 Piece
$ 109.36
12.6 x 11.2 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 7.60 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.6 x 11.2 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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11.5 ct Yellow Quartz, 15.9 x 15.6 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 11.50 carat weight Quartz

11.50ct1 Piece
$ 50.73
15.9 x 15.6 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 11.50 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 15.9 x 15.6 mm Quartz
Quartz Color: Lemon Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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13.29 ct Yellow Quartz, 16 x 15.9 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 13.29 carat weight Quartz

13.29ct1 Piece
$ 58.62
16 x 15.9 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 13.29 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16 x 15.9 mm Quartz
Quartz Color: Lemon Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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3.76 ct Loose Round Concave Cut Mystic Quartz, 10.1 mm From Brazil

Buy Natural Mystic Quartz, Qty: 1 pc | 3.76 carat weight Mystic Quartz

3.76ct1 Piece
$ 22.56
10.1 mm
Item Description
Stone Type: Loose Mystic Quartz
Mystic Quartz Weight: 3.76 ct Mystic Quartz
Mystic Quartz Shape: Round Concave Cut Mystic Quartz
Mystic Quartz Size: 10.1 mm Mystic Quartz
Mystic Quartz Color: Multicolor Mystic Quartz
Mystic Quartz Clarity: VVS-VS Mystic Quartz
Mystic Quartz Origin: Brazil Mystic Quartz
Mystic Quartz Treatment: Coated
Mystic Quartz Quantity: 1
Mystic Quartz Certificate: GemSelect
Product Description:
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9.72ct1 Piece
$ 139.87
16.4 x 10.1 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 9.72 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 16.4 x 10.1 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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13.25 ct Octagon Concave Cut Smoky Quartz, 16 x 15.9 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 13.25 carat weight Smoky Quartz

13.25ct1 Piece
$ 36.44
16 x 15.9 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 13.25 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 16 x 15.9 mm Smoky Quartz
Smoky Quartz Color: Medium-Light Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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10.6 ct Yellow Quartz, 12.1 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 2 pcs | 10.60 carat weight Quartz

10.60ct (total)2 Pieces
$ 58.30
12.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 5.30 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 12.1 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 2
Quartz Certificate: GemSelect
Product Description:
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24.33ct1 Piece
$ 218.97
19.7 x 16.9 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 24.33 ct Ametrine
Ametrine Shape: Cushion Concave Cut Ametrine
Ametrine Size: 19.7 x 16.9 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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5.13 ct Round Concave Cut Smoky Quartz, 12.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 5.13 carat weight Smoky Quartz

5.13ct1 Piece
$ 20.77
12.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 5.13 ct Smoky Quartz
Smoky Quartz Shape: Round Concave Cut Smoky Quartz
Smoky Quartz Size: 12.1 mm Smoky Quartz
Smoky Quartz Color: Light Earthy Brown Smoky Quartz
Smoky Quartz Clarity: VS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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6.15 ct Yellow Quartz, 12 x 12 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 6.15 carat weight Quartz

6.15ct1 Piece
$ 24.83
12 x 12 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 6.15 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 12 x 12 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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9.76 ct Marquise Concave Cut Smoky Quartz, 18.9 x 13 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 9.76 carat weight Smoky Quartz

9.76ct1 Piece
$ 26.84
18.9 x 13 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 9.76 ct Smoky Quartz
Smoky Quartz Shape: Marquise Concave Cut Smoky Quartz
Smoky Quartz Size: 18.9 x 13 mm Smoky Quartz
Smoky Quartz Color: Warm Brown Smoky Quartz
Smoky Quartz Clarity: VS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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9.15ct1 Piece
$ 131.81
13.4 x 11.7 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 9.15 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 13.4 x 11.7 mm Ametrine
Ametrine Color: Bi-color Ametrine
Ametrine Clarity: VVS-VS Ametrine
Ametrine Origin: Brazil Ametrine
Ametrine Treatment: Untreated
Ametrine Quantity: 1
Ametrine Certificate: GemSelect
Product Description:
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15.94 ct Round Concave Cut Smoky Quartz, 18 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 15.94 carat weight Smoky Quartz

15.94ct1 Piece
$ 64.53
18 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 15.94 ct Smoky Quartz
Smoky Quartz Shape: Round Concave Cut Smoky Quartz
Smoky Quartz Size: 18 mm Smoky Quartz
Smoky Quartz Color: Light Mocha Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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17.18 ct Octagon Concave Cut Smoky Quartz, 14 x 13.9 mm From Brazil

Buy Natural Smoky Quartz, Qty: 2 pcs | 17.18 carat weight Smoky Quartz

17.18ct (total)2 Pieces
$ 72.38
14 x 13.9 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 8.59 ct Smoky Quartz
Smoky Quartz Shape: Octagon Concave Cut Smoky Quartz
Smoky Quartz Size: 14 x 13.9 mm Smoky Quartz
Smoky Quartz Color: Light Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 2
Smoky Quartz Certificate: GemSelect
Product Description:
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3.78 ct Loose Trillion Concave Cut Mystic Quartz, 8.1 x 8.1 mm From Brazil

Buy Natural Mystic Quartz, Qty: 2 pcs | 3.78 carat weight Mystic Quartz

3.78ct (total)2 Pieces
$ 22.68
8.1 x 8.1 mm
Item Description
Stone Type: Loose Mystic Quartz
Mystic Quartz Weight: 1.89 ct Mystic Quartz
Mystic Quartz Shape: Trillion Concave Cut Mystic Quartz
Mystic Quartz Size: 8.1 x 8.1 mm Mystic Quartz
Mystic Quartz Color: Multicolor Mystic Quartz
Mystic Quartz Clarity: VS Mystic Quartz
Mystic Quartz Origin: Brazil Mystic Quartz
Mystic Quartz Treatment: Coated
Mystic Quartz Quantity: 2
Mystic Quartz Certificate: GemSelect
Product Description:
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12.85 ct Yellow Quartz, 16.1 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.85 carat weight Quartz

12.85ct1 Piece
$ 51.73
16.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.85 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16.1 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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27.8 ct Yellow Quartz, 20.6 x 17.8 mm Oval Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 27.80 carat weight Quartz

27.80ct1 Piece
$ 75.83
20.6 x 17.8 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 27.80 ct Quartz
Quartz Shape: Oval Concave Cut Quartz
Quartz Size: 20.6 x 17.8 mm Quartz
Quartz Color: Bumblebee Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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12.44 ct Yellow Quartz, 16.2 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.44 carat weight Quartz

12.44ct1 Piece
$ 50.08
16.2 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.44 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16.2 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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13.45 ct Oval Concave Cut Smoky Quartz, 14.1 x 12.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 2 pcs | 13.45 carat weight Smoky Quartz

13.45ct (total)2 Pieces
$ 56.66
14.1 x 12.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 6.73 ct Smoky Quartz
Smoky Quartz Shape: Oval Concave Cut Smoky Quartz
Smoky Quartz Size: 14.1 x 12.1 mm Smoky Quartz
Smoky Quartz Color: Walnut Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 2
Smoky Quartz Certificate: GemSelect
Product Description:
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14.36 ct Yellow Quartz, 16.2 x 16.1 mm Octagon Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 14.36 carat weight Quartz

14.36ct1 Piece
$ 63.34
16.2 x 16.1 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 14.36 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16.2 x 16.1 mm Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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12.6 ct Yellow Quartz, 16 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 12.60 carat weight Quartz

12.60ct1 Piece
$ 50.73
16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 12.60 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16 mm Quartz
Quartz Color: Light Yellow Quartz
Quartz Clarity: Transparent Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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11.79 ct Yellow Quartz, 16 mm Round Concave Cut From Brazil

Buy Natural Quartz, Qty: 1 pc | 11.79 carat weight Quartz

11.79ct1 Piece
$ 47.47
16 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 11.79 ct Quartz
Quartz Shape: Round Concave Cut Quartz
Quartz Size: 16 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS-VS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
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8.65 ct Round Concave Cut Smoky Quartz, 14.1 mm From Brazil

Buy Natural Smoky Quartz, Qty: 1 pc | 8.65 carat weight Smoky Quartz

8.65ct1 Piece
$ 23.79
14.1 mm
Item Description
Stone Type: Loose Smoky Quartz
Smoky Quartz Weight: 8.65 ct Smoky Quartz
Smoky Quartz Shape: Round Concave Cut Smoky Quartz
Smoky Quartz Size: 14.1 mm Smoky Quartz
Smoky Quartz Color: Umber Brown Smoky Quartz
Smoky Quartz Clarity: VVS Smoky Quartz
Smoky Quartz Origin: Brazil Smoky Quartz
Smoky Quartz Treatment: Untreated
Smoky Quartz Quantity: 1
Smoky Quartz Certificate: GemSelect
Product Description:
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82.38ct1 Piece
$ 576.66
31.7 x 23.6 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 82.38 ct Topaz
Topaz Shape: Oval Concave Cut Topaz
Topaz Size: 31.7 x 23.6 mm Topaz
Topaz Color: Swiss Blue Topaz
Topaz Clarity: IF Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 1
Topaz Certificate: GemSelect
Product Description:
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Concave cutting involves cutting facets that are three dimensional (curved). The technology to cut concave facets was developed by the American inventor Douglas Hoffman around 1990. It allows conical-shaped, three dimensional facets to be cut, so that each facet has depth as well as length and breadth. The result is that more of the ambient light is refracted and returned to the eye in the form of brilliance.

In order to find the concave-cut gems that you require, filter the results further by using the left-hand menu. You can buy concave-cut gems by gem type, color and shape. By using the top menu, you can search by carat weight, size, price, origin and other factors, to enable you to find the exact concave-cut gems that you are looking for. All items are in stock and ready to be shipped.
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