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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1466): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3244031 pcs
thumb image of 3ct Pear Cabochon Multicolor Black Opal (ID: 324403)
2.96ct Black Opal
13.19 x 10.24 x 5.36mm
USD 118.40
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ID: 3682082 pcs
thumb image of 2.9ct Oval Cabochon Multicolor Opal (ID: 368208)
2.93ct Opal
9.11 x 7.15 x 4.43mm
USD 80.72
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ID: 4420011 pcs
thumb image of 6.2ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442001)
6.21ct Opal in Matrix
14.71 x 11.05 x 5.44mm
USD 92.65
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ID: 3145641 pcs
thumb image of 1.8ct Marquise Facet Multicolor Opal (ID: 314564)
1.82ct Opal
13.28 x 6.52 x 5.76mm
USD 72.80
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ID: 4320872 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 432087)
1.57ct Fire Opal
8.03 x 6.20 x 3.94mm
USD 41.75
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ID: 3834891 pcs
thumb image of 0.9ct Round Facet Reddish Orange Fire Opal (ID: 383489)
0.88ct Fire Opal
7.36 x 3.72mm
USD 28.12
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ID: 3148331 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 314833)
1.81ct Opal
10.76 x 7.87 x 5.29mm
USD 72.40
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ID: 4322341 pcs
thumb image of 0.5ct Oval Cabochon Multicolor Opal (ID: 432234)
0.50ct Opal
5.73 x 5.12 x 3.64mm
USD 14.00
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ID: 4469258 pcs
thumb image of 4.1ct Pear Cabochon Multicolor Opal Doublet (ID: 446925)
4.09ct Opal Doublet
7.11 x 5.04 x 1.98mm
USD 61.35
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ID: 3165471 pcs
thumb image of 1.1ct Oval Facet Multicolor Opal (ID: 316547)
1.14ct Opal
9.90 x 7.80 x 4.14mm
USD 47.88
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ID: 4322371 pcs
thumb image of 0.5ct Oval Cabochon Multicolor Opal (ID: 432237)
0.47ct Opal
5.94 x 5.07 x 3.29mm
USD 13.16
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ID: 4319931 pcs
thumb image of 0.8ct Round Cabochon Multicolor Opal (ID: 431993)
0.79ct Opal
6.29 x 4.00mm
USD 22.12
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ID: 4321381 pcs
thumb image of 0.5ct Oval Cabochon Multicolor Opal (ID: 432138)
0.46ct Opal
5.78 x 4.95 x 3.63mm
USD 12.88
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ID: 4421801 pcs
thumb image of 2.7ct Pear Cabochon Multicolor Opal in Matrix (ID: 442180)
2.66ct Opal in Matrix
12.51 x 8.25 x 4.80mm
USD 39.69
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ID: 3080891 pcs
thumb image of 1.4ct Pear Facet Multicolor Opal (ID: 308089)
1.44ct Opal
11.30 x 8.25 x 5.01mm
USD 61.92
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ID: 44694316 pcs
thumb image of 3ct Pear Cabochon Multicolor Opal Doublet (ID: 446943)
2.97ct Opal Doublet
4.81 x 2.98 x 1.38mm
USD 44.55
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ID: 4293011 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 429301)
0.73ct Opal
7.97 x 6.01 x 3.54mm
USD 20.44
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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: 3460021 pcs
thumb image of 0.8ct Oval Facet Multicolor Opal (ID: 346002)
0.76ct Opal
8.15 x 6.11 x 3.89mm
USD 30.40
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ID: 4468013 pcs
thumb image of 3.1ct Oval Cabochon Multicolor Opal Doublet (ID: 446801)
3.07ct Opal Doublet
7.91 x 5.97 x 2.07mm
USD 46.05
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ID: 3202131 pcs
thumb image of 1.4ct Oval Facet Multicolor Opal (ID: 320213)
1.37ct Opal
10.15 x 7.96 x 4.32mm
USD 61.65
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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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