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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1174): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4206221 pcs
thumb image of 12.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420622)
12.44 ct Opal Doublet
41.5 x 9 mm
$ 199.04
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ID: 4322994 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 432299)
2.00 ct Fire Opal
7 x 5.1 mm
$ 53.18
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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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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: 4207781 pcs
thumb image of 11.6ct Fancy Cabochon Multicolor Boulder Opal (ID: 420778)
11.56 ct Boulder Opal
16.4 x 12.6 mm
$ 69.36
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ID: 2719921 pcs
thumb image of 2.6ct Pear Facet Multicolor Opal (ID: 271992)
2.58 ct Opal
11.4 x 9.9 mm
$ 43.86
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ID: 3219281 pcs
thumb image of 45.2ct Pear Cabochon Multicolor Boulder Opal (ID: 321928)
45.15 ct Boulder Opal
33.4 x 19.8 mm
$ 316.05
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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: 3439281 pcs
thumb image of 0.9ct Pear Facet Multicolor Opal (ID: 343928)
0.87 ct Opal
9.6 x 7.5 mm
$ 34.80
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ID: 3117861 pcs
thumb image of 1.7ct Oval Facet Multicolor Opal (ID: 311786)
1.71 ct Opal
11.6 x 8.3 mm
$ 68.40
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ID: 3218451 pcs
thumb image of 22.5ct Oval Cabochon Multicolor Boulder Opal (ID: 321845)
22.54 ct Boulder Opal
24.8 x 20 mm
$ 157.78
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ID: 4287932 pcs
thumb image of 1.3ct Oval Cabochon Multicolor Opal (ID: 428793)
1.30 ct Opal
8.2 x 6.2 mm
$ 36.40
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ID: 3859041 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 385904)
1.80 ct Opal
11.3 x 7.8 mm
$ 82.80
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ID: 3306324 pcs
thumb image of 2.5ct Oval Cabochon Multicolor Chocolate Opal (ID: 330632)
2.48 ct Chocolate Opal
7.1 x 5.1 mm
$ 74.40
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ID: 3146881 pcs
thumb image of 1.4ct Marquise Facet Multicolor Opal (ID: 314688)
1.38 ct Opal
13.6 x 6.5 mm
$ 55.20
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ID: 3690961 pcs
thumb image of 1.4ct Pear Cabochon Multicolor Opal (ID: 369096)
1.43 ct Opal
9.9 x 8.1 mm
$ 38.80
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ID: 4054191 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 405419)
1.54 ct Fire Opal
9.9 x 7.9 mm
$ 36.44
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ID: 4288122 pcs
thumb image of 1.9ct Oval Cabochon Multicolor Opal (ID: 428812)
1.87 ct Opal
8.2 x 6.2 mm
$ 52.36
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ID: 2496652 pcs
thumb image of 1.4ct Oval Cabochon Blue Opal Doublet (ID: 249665)
1.44 ct Opal Doublet
8 x 6 mm
$ 36.23
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ID: 4055301 pcs
thumb image of 1.7ct Oval Facet Orange Fire Opal (ID: 405530)
1.67 ct Fire Opal
10.8 x 8.5 mm
$ 39.51
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ID: 3652491 pcs
thumb image of 10.4ct Fancy Cabochon Multicolor Boulder Opal (ID: 365249)
10.40 ct Boulder Opal
19.5 x 12.6 mm
$ 72.80
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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