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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1461): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3184181 pcs
thumb image of 0.9ct Marquise Facet Multicolor Opal (ID: 318418)
0.88ct Opal
12.17 x 6.02 x 3.84mm
USD 36.96
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ID: 3704011 pcs
thumb image of 2.6ct Trillion Facet Reddish Orange Fire Opal (ID: 370401)
2.58ct Fire Opal
11.66 x 9.52 x 6.33mm
USD 116.10
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ID: 4056111 pcs
thumb image of 2.5ct Oval Facet Orange Fire Opal (ID: 405611)
2.47ct Fire Opal
11.64 x 9.03 x 6.14mm
USD 58.44
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ID: 3891321 pcs
thumb image of 0.9ct Oval Facet Multicolor Opal (ID: 389132)
0.88ct Opal
8.84 x 6.47 x 3.86mm
USD 57.12
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ID: 3184101 pcs
thumb image of 1.2ct Oval Facet Multicolor Opal (ID: 318410)
1.16ct Opal
8.88 x 6.96 x 5.10mm
USD 48.72
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ID: 3674781 pcs
thumb image of 1.3ct Oval Facet Reddish Orange Fire Opal (ID: 367478)
1.27ct Fire Opal
10.04 x 6.88 x 4.09mm
USD 42.39
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ID: 4055321 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 405532)
1.91ct Fire Opal
11.44 x 8.84 x 4.86mm
USD 45.19
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ID: 39153120 pcs
thumb image of 6.4ct Oval Cabochon Multicolor Opal Doublet (ID: 391531)
6.40ct Opal Doublet
5.97 x 3.96 x 1.47mm
USD 107.58
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ID: 3237121 pcs
thumb image of 4.3ct Oval Cabochon Multicolor Black Opal (ID: 323712)
4.34ct Black Opal
15.39 x 10.70 x 6.15mm
USD 173.60
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ID: 44692020 pcs
thumb image of 7.4ct Oval Cabochon Multicolor Opal Doublet (ID: 446920)
7.44ct Opal Doublet
6.14 x 4.10 x 1.69mm
USD 111.60
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ID: 4468662 pcs
thumb image of 1.8ct Oval Cabochon Multicolor Opal Doublet (ID: 446866)
1.82ct Opal Doublet
8.38 x 6.11 x 1.90mm
USD 27.30
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ID: 4226381 pcs
thumb image of 16.7ct Pear Cabochon Yellow Orange Fire Opal (ID: 422638)
16.66ct Fire Opal
25.44 x 16.84 x 8.56mm
USD 533.12
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ID: 4468053 pcs
thumb image of 2.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446805)
2.55ct Opal Doublet
8.09 x 6.03 x 2.38mm
USD 38.25
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ID: 3430861 pcs
thumb image of 1.2ct Oval Facet Multicolor Opal (ID: 343086)
1.24ct Opal
9.95 x 7.99 x 4.51mm
USD 55.80
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ID: 4320441 pcs
thumb image of 0.7ct Round Cabochon Multicolor Opal (ID: 432044)
0.73ct Opal
6.27 x 4.20mm
USD 20.44
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ID: 4468218 pcs
thumb image of 1.7ct Round Cabochon Multicolor Opal Doublet (ID: 446821)
1.73ct Opal Doublet
4.08 x 1.64mm
USD 25.95
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ID: 3644101 pcs
thumb image of 1.1ct Pear Facet Multicolor Opal (ID: 364410)
1.08ct Opal
10.93 x 7.73 x 3.68mm
USD 43.20
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ID: 4468442 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal Doublet (ID: 446844)
2.03ct Opal Doublet
8.13 x 6.05 x 2.24mm
USD 30.45
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ID: 2719921 pcs
thumb image of 2.6ct Pear Facet Multicolor Opal (ID: 271992)
2.58ct Opal
11.43 x 9.85 x 5.71mm
USD 43.86
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ID: 4291021 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 429102)
0.74ct Opal
7.89 x 5.92 x 3.97mm
USD 20.72
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ID: 3686932 pcs
thumb image of 1.5ct Oval Cabochon Multicolor Opal (ID: 368693)
1.46ct Opal
8.19 x 6.09 x 3.15mm
USD 39.93
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Opal
Opal, more than any other gem, each opalis 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

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