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Buy Concave Cut Ametrine Gems

(28)
Concave Cut Ametrine Weight Concave Cut Ametrine Size Concave Cut Ametrine Clarity Concave Cut Ametrine Price Concave Cut Ametrine Origin
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8.27ct1 Piece
$ 119.01
12.6 x 11.5 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 8.27 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.6 x 11.5 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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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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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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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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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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12.79ct1 Piece
$ 115.11
15.7 x 13.5 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 12.79 ct Ametrine
Ametrine Shape: Oval Concave Cut Ametrine
Ametrine Size: 15.7 x 13.5 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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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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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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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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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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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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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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7.53ct1 Piece
$ 108.36
12.4 x 11.9 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 7.53 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.4 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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21.22ct1 Piece
$ 190.98
20.4 x 16.2 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 21.22 ct Ametrine
Ametrine Shape: Oval Concave Cut Ametrine
Ametrine Size: 20.4 x 16.2 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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13.95ct1 Piece
$ 125.55
20.1 x 14.3 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 13.95 ct Ametrine
Ametrine Shape: Pear Concave Cut Ametrine
Ametrine Size: 20.1 x 14.3 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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7.09ct1 Piece
$ 102.03
14 x 10 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 7.09 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 14 x 10 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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16.66ct1 Piece
$ 149.94
20.1 x 15.4 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 16.66 ct Ametrine
Ametrine Shape: Pear Concave Cut Ametrine
Ametrine Size: 20.1 x 15.4 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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13.31ct1 Piece
$ 119.79
17.6 x 14.1 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 13.31 ct Ametrine
Ametrine Shape: Oval Concave Cut Ametrine
Ametrine Size: 17.6 x 14.1 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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8.84ct1 Piece
$ 127.21
12.6 x 11.6 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 8.84 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.6 x 11.6 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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15.28ct1 Piece
$ 137.52
15.9 x 15.6 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 15.28 ct Ametrine
Ametrine Shape: Cushion Concave Cut Ametrine
Ametrine Size: 15.9 x 15.6 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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12.54ct1 Piece
$ 112.86
16.8 x 13 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 12.54 ct Ametrine
Ametrine Shape: Cushion Concave Cut Ametrine
Ametrine Size: 16.8 x 13 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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12.63ct1 Piece
$ 113.67
21.1 x 12.7 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 12.63 ct Ametrine
Ametrine Shape: Pear Concave Cut Ametrine
Ametrine Size: 21.1 x 12.7 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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6.57ct1 Piece
$ 94.54
11.9 x 10.8 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 6.57 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 11.9 x 10.8 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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16.13ct1 Piece
$ 145.17
22.6 x 14.6 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 16.13 ct Ametrine
Ametrine Shape: Pear Concave Cut Ametrine
Ametrine Size: 22.6 x 14.6 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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13.49ct1 Piece
$ 121.41
17.1 x 12.9 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 13.49 ct Ametrine
Ametrine Shape: Cushion Concave Cut Ametrine
Ametrine Size: 17.1 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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7.47ct1 Piece
$ 107.49
13.9 x 10.5 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 7.47 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 13.9 x 10.5 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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19.08ct1 Piece
$ 171.72
22.9 x 16.7 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 19.08 ct Ametrine
Ametrine Shape: Pear Concave Cut Ametrine
Ametrine Size: 22.9 x 16.7 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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5.35ct1 Piece
$ 76.99
12.9 x 9.5 mm
Item Description
Stone Type: Loose Ametrine
Ametrine Weight: 5.35 ct Ametrine
Ametrine Shape: Octagon Concave Cut Ametrine
Ametrine Size: 12.9 x 9.5 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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Quartz which occurs in bands of yellow and purple has been given the name of ametrine (amethyst + citrine). It is sometimes referred to as trystine and is a natural bicolor combination of amethyst and citrine. Color band combinations in ametrine can range from pale-violet to deep-purple and from pale-yellow to gold-brown. Ametrine's color split is rather abrupt and is not a smooth blend of colors. Both the violet and yellow colors found in ametrine are from traces of iron. Initially cutters favored windowed emerald shapes with a 50/50 split of colors, and much of the rough is still cut this way. More recently, however, some cutters have begun to cut a variety of shapes, many of which create internal reflections that blend the yellow and purple into attractive shades of rosy gold and mauve, or create mosaic-like flashes of both yellow and purple.

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 ametrine gems that you require, filter the results further by using the left-hand menu. You can buy concave-cut ametrine gems by 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 ametrine gems that you are looking for. All items are in stock and ready to be shipped.
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