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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1316): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4423851 pcs
thumb image of 4.9ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442385)
4.94 ct Opal in Matrix
11.1 x 10.8 mm
$ 73.70
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ID: 4540334 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 454033)
2.02 ct Fire Opal
7.1 x 5.2 mm
$ 53.21
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ID: 4506221 pcs
thumb image of 0.8ct Oval Facet Orange Fire Opal (ID: 450622)
0.82 ct Fire Opal
8.8 x 6.9 mm
$ 21.96
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ID: 3689084 pcs
thumb image of 3.4ct Oval Cabochon Multicolor Opal (ID: 368908)
3.41 ct Opal
8.1 x 6.1 mm
$ 93.26
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ID: 3673051 pcs
thumb image of 1.5ct Oval Facet Reddish Orange Fire Opal (ID: 367305)
1.50 ct Fire Opal
8.6 x 7.3 mm
$ 50.07
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ID: 4423881 pcs
thumb image of 5ct Pear Cabochon Multicolor Opal in Matrix (ID: 442388)
5.00 ct Opal in Matrix
14.6 x 10.5 mm
$ 74.60
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ID: 4495312 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 449531)
1.63 ct Fire Opal
7.9 x 6.1 mm
$ 43.67
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ID: 3689485 pcs
thumb image of 4.8ct Oval Cabochon Multicolor Opal (ID: 368948)
4.79 ct Opal
8.2 x 6 mm
$ 129.95
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ID: 3212261 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 321226)
1.57 ct Opal
10 x 8.1 mm
$ 62.80
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ID: 4542201 pcs
thumb image of 0.8ct Oval Facet Orange Fire Opal (ID: 454220)
0.84 ct Fire Opal
7.7 x 6 mm
$ 22.13
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ID: 3689515 pcs
thumb image of 3.3ct Oval Cabochon Orange Opal (ID: 368951)
3.33 ct Opal
8 x 6 mm
$ 90.34
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ID: 4423861 pcs
thumb image of 5.9ct Oval Cabochon Multicolor Opal in Matrix (ID: 442386)
5.87 ct Opal in Matrix
12.5 x 11.4 mm
$ 87.58
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ID: 4291471 pcs
thumb image of 0.7ct Oval Cabochon White Opal (ID: 429147)
0.70 ct Opal
7.9 x 5.9 mm
$ 19.60
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ID: 4542992 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 454299)
1.88 ct Fire Opal
9 x 7.1 mm
$ 49.52
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ID: 3111451 pcs
thumb image of 1.6ct Pear Facet Multicolor Opal (ID: 311145)
1.55 ct Opal
11.7 x 7.4 mm
$ 65.10
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ID: 4322924 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 432292)
1.94 ct Fire Opal
7.2 x 5.2 mm
$ 51.58
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ID: 3693651 pcs
thumb image of 3.8ct Round Facet Reddish Orange Fire Opal (ID: 369365)
3.79 ct Fire Opal
11.5 mm
$ 122.91
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ID: 4421231 pcs
thumb image of 4ct Marquise Cabochon Multicolor Opal in Matrix (ID: 442123)
3.98 ct Opal in Matrix
14.7 x 8.7 mm
$ 59.38
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ID: 3118611 pcs
thumb image of 2.3ct Oval Facet Multicolor Opal (ID: 311861)
2.25 ct Opal
12.3 x 8.9 mm
$ 90.00
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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: 4421261 pcs
thumb image of 4.1ct Oval Cabochon Multicolor Opal in Matrix (ID: 442126)
4.06 ct Opal in Matrix
11.6 x 9.2 mm
$ 60.58
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Opal
Opal Gemstone Information Opal Ring Information

More than any other gem, each opal is distinctly individual. No other gemstone has such rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity. There are many varieties of opal, including black opal, white opal, common opal (potch), chocolate opal, boulder opal, opal doublet, opal triplet, fire opal and opal in matrix.

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, and is known in the gem trade as play of color. Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in gemstone rings, opal is not the greatest choice as a ring stone; it is however, very-well suited for other types of gemstone jewelry, including gemstone earrings, pins and gemstone pendants.

Major suppliers include Australia, Brazil, Ethiopia, Mexico, Peru and the United States. Values are normally determined by the presence and nature of color flashes, except in the case of Mexican fire opal, where body color is most valued.
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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