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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1362): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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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: 4544725 pcs
thumb image of 2.4ct Oval Facet Orange Fire Opal (ID: 454472)
2.40 ct Fire Opal
7 x 5.1 mm
$ 63.22
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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: 4323351 pcs
thumb image of 0.8ct Oval Facet Orange Fire Opal (ID: 432335)
0.80 ct Fire Opal
8.9 x 6.8 mm
$ 21.27
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ID: 3306304 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Chocolate Opal (ID: 330630)
2.39 ct Chocolate Opal
7.1 x 5.1 mm
$ 71.70
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ID: 3698211 pcs
thumb image of 5.8ct Oval Facet Reddish Orange Fire Opal (ID: 369821)
5.77 ct Fire Opal
13.9 x 11.3 mm
$ 187.12
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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: 3730701 pcs
thumb image of 5.6ct Marquise Cabochon Multicolor Black Opal (ID: 373070)
5.59 ct Black Opal
19.7 x 10.3 mm
$ 223.60
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ID: 3297864 pcs
thumb image of 2.5ct Oval Cabochon Multicolor Black Opal (ID: 329786)
2.47 ct Black Opal
7 x 5 mm
$ 98.80
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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: 3696751 pcs
thumb image of 4.9ct Oval Facet Reddish Orange Fire Opal (ID: 369675)
4.93 ct Fire Opal
13.8 x 11.1 mm
$ 159.88
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ID: 3306404 pcs
thumb image of 2.3ct Oval Cabochon Multicolor Chocolate Opal (ID: 330640)
2.29 ct Chocolate Opal
7 x 5 mm
$ 68.70
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ID: 3302481 pcs
thumb image of 5.5ct Pear Cabochon Multicolor Black Opal (ID: 330248)
5.45 ct Black Opal
17.4 x 11.1 mm
$ 218.00
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ID: 3140781 pcs
thumb image of 5.3ct Triangle Cabochon Multicolor Opal (ID: 314078)
5.30 ct Opal
22.4 x 11.9 mm
$ 212.00
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ID: 3298015 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Black Opal (ID: 329801)
2.44 ct Black Opal
7 x 5 mm
$ 97.60
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ID: 3303454 pcs
thumb image of 3.6ct Oval Cabochon Multicolor Chocolate Opal (ID: 330345)
3.57 ct Chocolate Opal
8.1 x 6.1 mm
$ 107.10
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ID: 4543511 pcs
thumb image of 1.3ct Oval Facet Orange Fire Opal (ID: 454351)
1.30 ct Fire Opal
8.9 x 7 mm
$ 34.24
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ID: 4505482 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 450548)
1.54 ct Fire Opal
8.1 x 6 mm
$ 41.24
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ID: 3298154 pcs
thumb image of 5.7ct Oval Cabochon Multicolor Black Opal (ID: 329815)
5.72 ct Black Opal
9.1 x 7.1 mm
$ 228.80
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ID: 4621961 pcs
thumb image of 9.7ct Oval Cabochon Multicolor Opal (ID: 462196)
9.66 ct Opal
18.4 x 13.5 mm
$ 388.91
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ID: 4495824 pcs
thumb image of 2.6ct Oval Facet Orange Fire Opal (ID: 449582)
2.61 ct Fire Opal
8.1 x 6.2 mm
$ 69.92
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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