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Buy Untreated Gemstones

(216)
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Photos are of Actual Products for Sale

12.07 ct Oval Boulder Opal, 27.4 x 9.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 12.07 carat weight Boulder Opal

12.07ct1 Piece
$ 84.49
27.4 x 9.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 12.07 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 27.4 x 9.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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25.75 ct Fancy Boulder Opal, 21 x 18.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 25.75 carat weight Boulder Opal

25.75ct1 Piece
$ 141.63
21 x 18.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 25.75 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 21 x 18.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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33.73 ct Fancy Boulder Opal, 35.2 x 23.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 33.73 carat weight Boulder Opal

33.73ct1 Piece
$ 185.52
35.2 x 23.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 33.73 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 35.2 x 23.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Translucent Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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19.33 ct Fancy Boulder Opal, 26 x 15.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 19.33 carat weight Boulder Opal

19.33ct1 Piece
$ 96.65
26 x 15.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 19.33 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 26 x 15.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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20.97 ct Oval Boulder Opal, 21.5 x 15.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 20.97 carat weight Boulder Opal

20.97ct1 Piece
$ 104.85
21.5 x 15.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.97 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 21.5 x 15.7 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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25.5 ct Trillion Boulder Opal, 22.1 x 21.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 25.50 carat weight Boulder Opal

25.50ct1 Piece
$ 127.50
22.1 x 21.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 25.50 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 22.1 x 21.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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23.38 ct Fancy Boulder Opal, 25.3 x 16.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 23.38 carat weight Boulder Opal

23.38ct1 Piece
$ 116.90
25.3 x 16.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 23.38 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.3 x 16.7 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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17.73 ct Fancy Boulder Opal, 23.7 x 15.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 17.73 carat weight Boulder Opal

17.73ct1 Piece
$ 88.65
23.7 x 15.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 17.73 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 23.7 x 15.3 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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20.55ct1 Piece
$ 113.03
31.9 x 16.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.55 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 31.9 x 16.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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28.58 ct Oval Boulder Opal, 23.1 x 18.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 28.58 carat weight Boulder Opal

28.58ct1 Piece
$ 200.06
23.1 x 18.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 28.58 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 23.1 x 18.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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24.07 ct Fancy Boulder Opal, 22.2 x 18.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 24.07 carat weight Boulder Opal

24.07ct1 Piece
$ 120.35
22.2 x 18.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 24.07 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 22.2 x 18.7 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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21.39 ct Cushion Boulder Opal, 16.4 x 16.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 21.39 carat weight Boulder Opal

21.39ct1 Piece
$ 164.70
16.4 x 16.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 21.39 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 16.4 x 16.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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20.1 ct Cushion Boulder Opal, 21.1 x 16.6 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 20.10 carat weight Boulder Opal

20.10ct1 Piece
$ 100.50
21.1 x 16.6 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.10 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 21.1 x 16.6 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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19.94 ct Marquise Boulder Opal, 36.4 x 16.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 19.94 carat weight Boulder Opal

19.94ct1 Piece
$ 109.67
36.4 x 16.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 19.94 ct Boulder Opal
Boulder Opal Shape: Marquise Cabochon Boulder Opal
Boulder Opal Size: 36.4 x 16.3 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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21.16 ct Fancy Boulder Opal, 25.6 x 16.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 21.16 carat weight Boulder Opal

21.16ct1 Piece
$ 105.80
25.6 x 16.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 21.16 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.6 x 16.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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41.37 ct Oval Boulder Opal, 29.7 x 21.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 41.37 carat weight Boulder Opal

41.37ct1 Piece
$ 227.54
29.7 x 21.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 41.37 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 29.7 x 21.2 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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34.16 ct Oval Boulder Opal, 23.4 x 19.6 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 34.16 carat weight Boulder Opal

34.16ct1 Piece
$ 263.42
23.4 x 19.6 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 34.16 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 23.4 x 19.6 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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35.99 ct Fancy Boulder Opal, 45 x 23.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 35.99 carat weight Boulder Opal

35.99ct1 Piece
$ 107.97
45 x 23.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 35.99 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 45 x 23.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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17.03 ct Fancy Boulder Opal, 26.9 x 13.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 17.03 carat weight Boulder Opal

17.03ct1 Piece
$ 93.67
26.9 x 13.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 17.03 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 26.9 x 13.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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26.43 ct Oval Boulder Opal, 28.5 x 17.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 26.43 carat weight Boulder Opal

26.43ct1 Piece
$ 145.37
28.5 x 17.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 26.43 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 28.5 x 17.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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16.81 ct Fancy Boulder Opal, 28.8 x 13.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 16.81 carat weight Boulder Opal

16.81ct1 Piece
$ 84.05
28.8 x 13.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 16.81 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 28.8 x 13.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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30.50ct1 Piece
$ 167.75
29.4 x 21.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 30.50 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 29.4 x 21.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Translucent Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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28.09 ct Oval Boulder Opal, 26.6 x 19.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 28.09 carat weight Boulder Opal

28.09ct1 Piece
$ 216.29
26.6 x 19.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 28.09 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 26.6 x 19.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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30.94 ct Fancy Boulder Opal, 25.4 x 20.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 30.94 carat weight Boulder Opal

30.94ct1 Piece
$ 170.17
25.4 x 20.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 30.94 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.4 x 20.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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20.3 ct Fancy Boulder Opal, 25.5 x 16 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 20.30 carat weight Boulder Opal

20.30ct1 Piece
$ 101.50
25.5 x 16 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 20.30 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 25.5 x 16 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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17.29 ct Fancy Boulder Opal, 27 x 17.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 17.29 carat weight Boulder Opal

17.29ct1 Piece
$ 95.10
27 x 17.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 17.29 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 27 x 17.2 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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17.24 ct Trillion Boulder Opal, 21.2 x 17.4 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 17.24 carat weight Boulder Opal

17.24ct1 Piece
$ 86.20
21.2 x 17.4 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 17.24 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 21.2 x 17.4 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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23.4 ct Oval Boulder Opal, 24.1 x 16.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 23.40 carat weight Boulder Opal

23.40ct1 Piece
$ 117.00
24.1 x 16.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 23.40 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 24.1 x 16.7 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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15.88 ct Cushion Boulder Opal, 23.1 x 12.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 15.88 carat weight Boulder Opal

15.88ct1 Piece
$ 111.16
23.1 x 12.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 15.88 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 23.1 x 12.2 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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33.71 ct Fancy Boulder Opal, 32.6 x 22.1 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 33.71 carat weight Boulder Opal

33.71ct1 Piece
$ 185.41
32.6 x 22.1 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 33.71 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 32.6 x 22.1 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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14.98 ct Cushion Boulder Opal, 20.2 x 13.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 14.98 carat weight Boulder Opal

14.98ct1 Piece
$ 104.86
20.2 x 13.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 14.98 ct Boulder Opal
Boulder Opal Shape: Cushion Cabochon Boulder Opal
Boulder Opal Size: 20.2 x 13.9 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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21.59 ct Fancy Boulder Opal, 24.1 x 18.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 21.59 carat weight Boulder Opal

21.59ct1 Piece
$ 107.95
24.1 x 18.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 21.59 ct Boulder Opal
Boulder Opal Shape: Fancy Cabochon Boulder Opal
Boulder Opal Size: 24.1 x 18.3 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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25.3 ct Oval Boulder Opal, 29.7 x 13.5 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 25.30 carat weight Boulder Opal

25.30ct1 Piece
$ 177.10
29.7 x 13.5 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 25.30 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 29.7 x 13.5 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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8.11ct1 Piece
$ 90.55
22.1 x 13.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 8.11 ct Boulder Opal
Boulder Opal Shape: Pear Cabochon Boulder Opal
Boulder Opal Size: 22.1 x 13.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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22.12 ct Oval Boulder Opal, 27.5 x 12.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 22.12 carat weight Boulder Opal

22.12ct1 Piece
$ 154.84
27.5 x 12.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 22.12 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 27.5 x 12.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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42.73 ct Oval Boulder Opal, 27.5 x 20.8 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 42.73 carat weight Boulder Opal

42.73ct1 Piece
$ 329.02
27.5 x 20.8 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 42.73 ct Boulder Opal
Boulder Opal Shape: Oval Cabochon Boulder Opal
Boulder Opal Size: 27.5 x 20.8 mm Boulder Opal
Boulder Opal Color: Multicolor Boulder Opal
Boulder Opal Clarity: Opaque Boulder Opal
Boulder Opal Origin: Australia Boulder Opal
Boulder Opal Treatment: Untreated
Boulder Opal Quantity: 1
Boulder Opal Certificate: GemSelect
Product Description:
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The idea of treating gemstones is nothing new. Nowadays, gem treatments are a way to supply the global demand for colored gemstones with a very limited 'natural' supply. Many gem types are always, or almost always, treated. The most common gem treatment is heat treatment, which is routinely applied to ruby and sapphire. Other gems such as emerald, tanzanite, blue zircon and blue topaz, are generally treated to produce their distinctive color; in fact it's virtually impossible to buy blue topaz that has not been irradiated. Even for the most expert gem buyers, determining whether a gemstone has been treated or enhanced is not always easy, and usually requires much more than just a jeweler's loupe.

Even with advanced gemological equipment, many treatments are still almost impossible to detect. So for many gem and jewelry buyers, one of the best ways to ensure the gem they're acquiring is completely natural and untreated, is through the selective buying of gemstone varieties that for the most part are never enhanced in any way. If you're searching for untreated gemstones, you may be surprised to discover we carry over 100 different untreated gem types.

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Overall Rating -> 10 star ratings

The website was very easy to navigate. We appreciated the details about each gem, and the sort and search features of the website were helpful and easy to use.

Posted By AV in May, 2023
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Overall Rating -> 10 star ratings

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023
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Overall Rating -> 10 star ratings

I found it to be easy to browse and easy to use

Posted By Kyle in December, 2023
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Overall Rating -> 10 star ratings

Great selection and excellent website.

Posted By JBW in October, 2023
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Overall Rating -> 10 star ratings

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 2023
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Overall Rating -> 10 star ratings

this was very easy im exited to get my order

Posted By Mr. in April, 2024
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Overall Rating -> 10 star ratings

Very Good

Posted By Julian in July, 2023
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Overall Rating -> 9 star ratings

It was simple and clear to understand.

Posted By Thora007 in December, 2023
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Overall Rating -> 9 star ratings

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023
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Overall Rating -> 10 star ratings

I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023
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Overall Rating -> 10 star ratings

Selection and purchasing online was very easy

Posted By Aggy in January, 2024
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Overall Rating -> 10 star ratings

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024
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Overall Rating -> 10 star ratings

Very detailed and great pictures

Posted By Alexandrite in November, 2023
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Overall Rating -> 9 star ratings

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024
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