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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (467): Opal Cabochons Fire Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4622011 pcs
thumb image of 19.7ct Oval Cabochon Multicolor Opal (ID: 462201)
19.73 ct Opal
20.3 x 17.5 mm
$ 794.33
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ID: 3686912 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal (ID: 368691)
2.03 ct Opal
8 x 6.1 mm
$ 55.52
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ID: 4322351 pcs
thumb image of 0.5ct Oval Cabochon Multicolor Opal (ID: 432235)
0.51 ct Opal
6 x 5.1 mm
$ 14.28
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ID: 3682062 pcs
thumb image of 2.2ct Oval Cabochon Orange Opal (ID: 368206)
2.19 ct Opal
9 x 7 mm
$ 60.33
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ID: 4293101 pcs
thumb image of 0.6ct Oval Cabochon White Opal (ID: 429310)
0.60 ct Opal
7.8 x 6 mm
$ 16.80
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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: 4312781 pcs
thumb image of 0.9ct Oval Cabochon Multicolor Opal (ID: 431278)
0.85 ct Opal
7.3 x 6.4 mm
$ 17.00
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ID: 4320471 pcs
thumb image of 0.6ct Round Cabochon Multicolor Opal (ID: 432047)
0.63 ct Opal
6.4 mm
$ 17.64
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ID: 4619561 pcs
thumb image of 0.6ct Pear Cabochon Multicolor Opal Doublet (ID: 461956)
0.64 ct Opal Doublet
8.1 x 5.1 mm
$ 9.63
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ID: 3830871 pcs
thumb image of 10.7ct Pear Cabochon Yellow Orange Fire Opal (ID: 383087)
10.70 ct Fire Opal
23 x 13.1 mm
$ 228.44
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ID: 3303254 pcs
thumb image of 3ct Oval Cabochon Multicolor Chocolate Opal (ID: 330325)
3.00 ct Chocolate Opal
7.9 x 6.1 mm
$ 90.00
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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: 3830931 pcs
thumb image of 10.9ct Pear Cabochon Yellow Fire Opal (ID: 383093)
10.94 ct Fire Opal
22.1 x 13.7 mm
$ 233.57
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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: 3193901 pcs
thumb image of 4ct Marquise Cabochon Multicolor Black Opal (ID: 319390)
3.99 ct Black Opal
18.7 x 8.3 mm
$ 159.60
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ID: 3303414 pcs
thumb image of 3ct Oval Cabochon Multicolor Chocolate Opal (ID: 330341)
3.01 ct Chocolate Opal
7.1 x 6 mm
$ 90.30
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ID: 3297955 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Black Opal (ID: 329795)
2.70 ct Black Opal
7 x 5 mm
$ 108.00
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ID: 3306394 pcs
thumb image of 2.6ct Oval Cabochon Multicolor Chocolate Opal (ID: 330639)
2.56 ct Chocolate Opal
7.1 x 5.1 mm
$ 76.80
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ID: 3245291 pcs
thumb image of 4.9ct Cushion Cabochon Multicolor Black Opal (ID: 324529)
4.89 ct Black Opal
15.2 x 9.7 mm
$ 195.60
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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: 3237121 pcs
thumb image of 4.3ct Oval Cabochon Multicolor Black Opal (ID: 323712)
4.34 ct Black Opal
15.4 x 10.7 mm
$ 173.60
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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