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Buy Opal Cabochons Gems

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Opal Cabochons Weight Opal Cabochons Size Opal Cabochons Clarity Opal Cabochons Price Opal Cabochons Origin
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Photos are of Actual Products for Sale

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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4.38ct1 Piece
$ 131.40
12.5 x 12.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.38 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 12.5 x 12.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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3.13ct1 Piece
$ 93.90
11.1 x 10.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.13 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 11.1 x 10.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
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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1.19ct1 Piece
$ 39.27
8.5 x 8.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.19 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 8.5 x 8.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Opaque Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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5.55 ct Trillion Black Opal, 13.3 x 14.2 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 5.55 carat weight Black Opal

5.55ct1 Piece
$ 166.50
13.3 x 14.2 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 5.55 ct Black Opal
Black Opal Shape: Trillion Cabochon Black Opal
Black Opal Size: 13.3 x 14.2 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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4.06 ct Trillion Black Opal, 13.7 x 13.1 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 4.06 carat weight Black Opal

4.06ct1 Piece
$ 121.80
13.7 x 13.1 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 4.06 ct Black Opal
Black Opal Shape: Trillion Cabochon Black Opal
Black Opal Size: 13.7 x 13.1 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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12.73 ct Trillion Boulder Opal, 16.6 x 15.7 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 12.73 carat weight Boulder Opal

12.73ct1 Piece
$ 63.65
16.6 x 15.7 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 12.73 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 16.6 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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13.97 ct Trillion Boulder Opal, 20.4 x 12.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 13.97 carat weight Boulder Opal

13.97ct1 Piece
$ 76.84
20.4 x 12.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 13.97 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 20.4 x 12.9 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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0.85ct1 Piece
$ 29.75
8 x 8.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.85 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 8 x 8.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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3.74 ct Trillion Black Opal, 13.5 x 13.5 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 3.74 carat weight Black Opal

3.74ct1 Piece
$ 112.20
13.5 x 13.5 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 3.74 ct Black Opal
Black Opal Shape: Trillion Cabochon Black Opal
Black Opal Size: 13.5 x 13.5 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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6.24ct1 Piece
$ 138.40
14.4 x 14.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 6.24 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 14.4 x 14.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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33.93 ct Trillion Boulder Opal, 26.7 x 21.3 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 33.93 carat weight Boulder Opal

33.93ct1 Piece
$ 224.47
26.7 x 21.3 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 33.93 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 26.7 x 21.3 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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1.66ct1 Piece
$ 58.10
9 x 9.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.66 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 9 x 9.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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1.26ct1 Piece
$ 38.81
8.1 x 7.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.26 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 8.1 x 7.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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4.85 ct Trillion Black Opal, 13.1 x 12.9 mm From Ethiopia

Natural Black Opal, Qty: 1 pc | 4.85 carat weight Black Opal

4.85ct1 Piece
$ 145.50
13.1 x 12.9 mm
Item Description
Stone Type: Loose Black Opal
Black Opal Weight: 4.85 ct Black Opal
Black Opal Shape: Trillion Cabochon Black Opal
Black Opal Size: 13.1 x 12.9 mm Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Origin: Ethiopia Black Opal
Black Opal Treatment: Smoked
Black Opal Quantity: 1
Black Opal Certificate: GemSelect
Product Description:
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6.17 ct Trillion Boulder Opal, 14.2 x 13.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 6.17 carat weight Boulder Opal

6.17ct1 Piece
$ 30.85
14.2 x 13.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 6.17 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 14.2 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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12.06ct1 Piece
$ 485.54
18 x 17.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 12.06 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 18 x 17.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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1.00ct1 Piece
$ 35.00
8 x 8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.00 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 8 x 8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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4.30ct1 Piece
$ 95.37
14.1 x 11.4 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.30 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 14.1 x 11.4 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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19.83 ct Trillion Boulder Opal, 22.8 x 21.2 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 19.83 carat weight Boulder Opal

19.83ct1 Piece
$ 65.44
22.8 x 21.2 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 19.83 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 22.8 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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3 ct Loose Trillion Opal, 12 x 11 mm From Australia

Natural Opal, Qty: 1 pc | 3.00 carat weight Opal

3.00ct1 Piece
$ 66.54
12 x 11 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.00 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 12 x 11 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
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5.28 ct Trillion Boulder Opal, 17.3 x 15.9 mm From Australia

Natural Boulder Opal, Qty: 1 pc | 5.28 carat weight Boulder Opal

5.28ct1 Piece
$ 36.96
17.3 x 15.9 mm
Item Description
Stone Type: Loose Boulder Opal
Boulder Opal Weight: 5.28 ct Boulder Opal
Boulder Opal Shape: Trillion Cabochon Boulder Opal
Boulder Opal Size: 17.3 x 15.9 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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0.64ct1 Piece
$ 21.12
6.9 x 6.5 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 0.64 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 6.9 x 6.5 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Opaque Opal
Opal Origin: Ethiopia Opal
Opal Treatment: Smoked
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
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More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity.

Opal's fire was long thought to be the result of iridescence. However, with the advent of scanning electron microscopes, we now know that it is a result of diffraction.

Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in rings, opal is a poor choice for a ring stone; it is much better suited to earrings, pins, and pendants.

Major suppliers include Australia, Brazil, Mexico, and the US. Values are normally determined by the presence and nature of color flashes.
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