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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1492): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3644201 pcs
thumb image of 1ct Oval Facet Multicolor Opal (ID: 364420)
1.03 ct Opal
9 x 7 mm
$ 41.20
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ID: 4207161 pcs
thumb image of 3.7ct Oval Cabochon Blue Opal Doublet (ID: 420716)
3.66 ct Opal Doublet
14.6 x 9.3 mm
$ 58.56
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ID: 4469381 pcs
thumb image of 3.6ct Fancy Cabochon Multicolor Opal Doublet (ID: 446938)
3.59 ct Opal Doublet
17.2 x 11.3 mm
$ 53.85
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ID: 3460001 pcs
thumb image of 0.8ct Oval Facet Multicolor Opal (ID: 346000)
0.78 ct Opal
8.2 x 6.2 mm
$ 31.20
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ID: 4541782 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 454178)
1.75 ct Fire Opal
8.1 x 6.1 mm
$ 46.10
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ID: 4318962 pcs
thumb image of 2.1ct Oval Facet Orange Fire Opal (ID: 431896)
2.11 ct Fire Opal
9.1 x 7 mm
$ 56.10
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ID: 3111291 pcs
thumb image of 1.7ct Pear Facet Multicolor Opal (ID: 311129)
1.69 ct Opal
11.2 x 8.4 mm
$ 67.60
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ID: 4504122 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 450412)
1.79 ct Fire Opal
8.8 x 6.8 mm
$ 47.94
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ID: 3670371 pcs
thumb image of 2.1ct Oval Facet Reddish Orange Fire Opal (ID: 367037)
2.13 ct Fire Opal
11.4 x 8.4 mm
$ 71.04
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ID: 3218461 pcs
thumb image of 21.6ct Trillion Cabochon Multicolor Boulder Opal (ID: 321846)
21.64 ct Boulder Opal
21.2 x 20.6 mm
$ 151.48
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ID: 4321542 pcs
thumb image of 1.2ct Oval Facet Orange Fire Opal (ID: 432154)
1.16 ct Fire Opal
7.9 x 6.1 mm
$ 30.84
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ID: 3682002 pcs
thumb image of 3ct Oval Cabochon Multicolor Opal (ID: 368200)
2.99 ct Opal
9.2 x 7.2 mm
$ 82.37
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ID: 3302511 pcs
thumb image of 5.7ct Pear Cabochon Multicolor Black Opal (ID: 330251)
5.70 ct Black Opal
16.8 x 12.2 mm
$ 228.00
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ID: 3695211 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 369521)
1.54 ct Fire Opal
9.4 x 7.8 mm
$ 49.94
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ID: 44691320 pcs
thumb image of 7.9ct Oval Cabochon Multicolor Opal Doublet (ID: 446913)
7.87 ct Opal Doublet
6.1 x 4 mm
$ 118.05
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ID: 3166381 pcs
thumb image of 1.4ct Oval Facet Multicolor Opal (ID: 316638)
1.38 ct Opal
10 x 7.9 mm
$ 57.96
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ID: 4493291 pcs
thumb image of 2.9ct Fancy Cabochon Multicolor Opal Doublet (ID: 449329)
2.86 ct Opal Doublet
16.1 x 8.1 mm
$ 41.73
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ID: 3219211 pcs
thumb image of 21.3ct Oval Cabochon Multicolor Boulder Opal (ID: 321921)
21.32 ct Boulder Opal
27.3 x 13.1 mm
$ 149.24
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ID: 3652301 pcs
thumb image of 17.6ct Fancy Cabochon Multicolor Boulder Opal (ID: 365230)
17.55 ct Boulder Opal
19.4 x 13.3 mm
$ 122.85
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ID: 3080701 pcs
thumb image of 1.5ct Pear Facet Multicolor Opal (ID: 308070)
1.50 ct Opal
11.3 x 7.4 mm
$ 64.50
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ID: 3685962 pcs
thumb image of 1.6ct Oval Cabochon Multicolor Opal (ID: 368596)
1.55 ct Opal
7.9 x 6 mm
$ 42.39
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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