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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (401): Opal Cabochons Fire Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4313741 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 431374)
0.71 ct Opal
6.6 x 5.8 mm
$ 14.20
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ID: 3682962 pcs
thumb image of 1.9ct Oval Cabochon Orange Opal (ID: 368296)
1.87 ct Opal
8 x 6.1 mm
$ 51.52
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ID: 3689104 pcs
thumb image of 2.1ct Oval Cabochon Multicolor Opal (ID: 368910)
2.05 ct Opal
7.1 x 5.2 mm
$ 56.07
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ID: 3804011 pcs
thumb image of 15.8ct Oval Cabochon Yellow Fire Opal (ID: 380401)
15.79 ct Fire Opal
22.3 x 14.9 mm
$ 341.22
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ID: 4621331 pcs
thumb image of 15.4ct Pear Cabochon Multicolor Opal (ID: 462133)
15.39 ct Opal
22.8 x 17.9 mm
$ 619.60
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ID: 4322811 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 432281)
0.70 ct Opal
6.7 x 5.8 mm
$ 19.60
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ID: 3804061 pcs
thumb image of 15.9ct Pear Cabochon Yellow Fire Opal (ID: 380406)
15.86 ct Fire Opal
28.8 x 14.2 mm
$ 342.73
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ID: 4622221 pcs
thumb image of 14.5ct Oval Cabochon Multicolor Opal (ID: 462222)
14.53 ct Opal
21 x 14.5 mm
$ 584.98
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ID: 3804041 pcs
thumb image of 15.1ct Pear Cabochon Yellow Fire Opal (ID: 380404)
15.07 ct Fire Opal
27.2 x 14.9 mm
$ 325.66
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ID: 3804031 pcs
thumb image of 15.6ct Pear Cabochon Yellow Fire Opal (ID: 380403)
15.63 ct Fire Opal
29.4 x 14.1 mm
$ 337.76
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ID: 3306424 pcs
thumb image of 2.8ct Oval Cabochon Multicolor Chocolate Opal (ID: 330642)
2.83 ct Chocolate Opal
7 x 5.1 mm
$ 84.90
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ID: 4622231 pcs
thumb image of 14.4ct Oval Cabochon Multicolor Opal (ID: 462223)
14.39 ct Opal
22.2 x 13.6 mm
$ 579.34
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ID: 3306915 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Chocolate Opal (ID: 330691)
2.71 ct Chocolate Opal
7 x 5.1 mm
$ 81.30
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ID: 3804071 pcs
thumb image of 18.4ct Pear Cabochon Yellow Fire Opal (ID: 380407)
18.36 ct Fire Opal
31.3 x 15.4 mm
$ 396.76
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ID: 3303114 pcs
thumb image of 3.2ct Oval Cabochon Multicolor Chocolate Opal (ID: 330311)
3.23 ct Chocolate Opal
8 x 6.1 mm
$ 96.90
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ID: 4622191 pcs
thumb image of 14.2ct Pear Cabochon Multicolor Opal (ID: 462219)
14.21 ct Opal
20.7 x 16.5 mm
$ 572.09
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ID: 3303334 pcs
thumb image of 3.4ct Oval Cabochon Multicolor Chocolate Opal (ID: 330333)
3.38 ct Chocolate Opal
8 x 6.1 mm
$ 101.40
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ID: 3830861 pcs
thumb image of 10.3ct Pear Cabochon Yellow Orange Fire Opal (ID: 383086)
10.30 ct Fire Opal
22.4 x 12.6 mm
$ 219.91
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ID: 3303264 pcs
thumb image of 3.5ct Oval Cabochon Multicolor Chocolate Opal (ID: 330326)
3.46 ct Chocolate Opal
8.1 x 6.1 mm
$ 103.80
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ID: 4622241 pcs
thumb image of 14.1ct Oval Cabochon Multicolor Opal (ID: 462224)
14.13 ct Opal
18.4 x 15.9 mm
$ 568.87
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ID: 4292611 pcs
thumb image of 0.7ct Oval Cabochon White Opal (ID: 429261)
0.74 ct Opal
8 x 6.2 mm
$ 20.72
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Opal Cabochons
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.
English speaking customer support only

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International:
+66-39303404

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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart