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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (886): 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: 4786271 pcs
thumb image of 0.8ct Pear Cabochon Yellow Opal (ID: 478627)
0.83 ct Opal
9 x 6.2 mm
$ 29.05
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ID: 4672701 pcs
thumb image of 18.3ct Oval Cabochon White Opal (ID: 467270)
18.33 ct Opal
20 x 16.9 mm
$ 737.97
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ID: 4775015 pcs
thumb image of 0.7ct Round Cabochon Yellow Opal (ID: 477501)
0.69 ct Opal
4 mm
$ 14.70
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ID: 3682982 pcs
thumb image of 1.7ct Oval Cabochon Orange Opal (ID: 368298)
1.73 ct Opal
7.8 x 5.9 mm
$ 47.66
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ID: 4620931 pcs
thumb image of 17.3ct Oval Cabochon Multicolor Opal (ID: 462093)
17.26 ct Opal
19.3 x 14.8 mm
$ 694.89
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ID: 4791642 pcs
thumb image of 2.2ct Oval Cabochon White Opal (ID: 479164)
2.24 ct Opal
8.8 x 6.9 mm
$ 59.47
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ID: 4622141 pcs
thumb image of 16.8ct Oval Cabochon White Opal (ID: 462214)
16.83 ct Opal
20.8 x 16.6 mm
$ 677.58
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ID: 4775524 pcs
thumb image of 0.7ct Round Cabochon White Opal (ID: 477552)
0.74 ct Opal
4.1 mm
$ 15.77
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ID: 4621341 pcs
thumb image of 15.7ct Oval Cabochon Multicolor Opal (ID: 462134)
15.72 ct Opal
19.5 x 17.1 mm
$ 632.89
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ID: 4786241 pcs
thumb image of 0.9ct Trillion Cabochon White Opal (ID: 478624)
0.85 ct Opal
8 x 8.3 mm
$ 29.75
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ID: 3801071 pcs
thumb image of 12.5ct Cushion Cabochon Yellow Orange Fire Opal (ID: 380107)
12.52 ct Fire Opal
17.3 x 14.2 mm
$ 438.20
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ID: 4621351 pcs
thumb image of 15.4ct Oval Cabochon Yellow Opal (ID: 462135)
15.44 ct Opal
18.8 x 15.7 mm
$ 621.61
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ID: 4797741 pcs
thumb image of 0.6ct Oval Cabochon Orange Opal (ID: 479774)
0.63 ct Opal
7.9 x 6 mm
$ 16.73
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ID: 4774584 pcs
thumb image of 2.3ct Round Cabochon Yellow Opal (ID: 477458)
2.26 ct Opal
6.1 mm
$ 48.16
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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: 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: 4774594 pcs
thumb image of 2.5ct Round Cabochon Yellow Opal (ID: 477459)
2.50 ct Opal
6.1 mm
$ 53.28
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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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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