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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1410): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4324553 pcs
thumb image of 2.3ct Oval Facet Orange Fire Opal (ID: 432455)
2.33ct Fire Opal
7.89 x 6.00 x 4.04mm
USD 61.95
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ID: 3024171 pcs
thumb image of 5.4ct Trillion Cabochon Multicolor Chocolate Opal (ID: 302417)
5.44ct Chocolate Opal
15.67 x 13.01 x 6.65mm
USD 217.60
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ID: 4322841 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 432284)
0.66ct Opal
6.71 x 6.11 x 3.62mm
USD 18.48
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ID: 4206811 pcs
thumb image of 9.9ct Fancy Cabochon Multicolor Boulder Opal (ID: 420681)
9.90ct Boulder Opal
17.72 x 14.03 x 5.08mm
USD 59.40
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ID: 3219561 pcs
thumb image of 3.5ct Pear Cabochon Multicolor Opal (ID: 321956)
3.53ct Opal
14.28 x 11.05 x 4.97mm
USD 105.90
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ID: 4422271 pcs
thumb image of 4.1ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442227)
4.08ct Opal in Matrix
11.31 x 9.19 x 6.03mm
USD 60.87
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ID: 4312701 pcs
thumb image of 2.8ct Pear Facet Orange Fire Opal (ID: 431270)
2.84ct Fire Opal
12.76 x 9.17 x 7.10mm
USD 99.26
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ID: 4056741 pcs
thumb image of 1.1ct Oval Facet Orange Fire Opal (ID: 405674)
1.10ct Fire Opal
9.19 x 6.90 x 4.59mm
USD 25.94
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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: 4313711 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431371)
0.63ct Opal
6.08 x 5.71 x 3.85mm
USD 12.60
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ID: 4052761 pcs
thumb image of 1.1ct Oval Facet Orange Fire Opal (ID: 405276)
1.08ct Fire Opal
9.20 x 6.98 x 4.21mm
USD 25.39
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ID: 3212371 pcs
thumb image of 1.1ct Oval Facet Multicolor Opal (ID: 321237)
1.14ct Opal
9.38 x 7.32 x 4.40mm
USD 45.60
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ID: 3673061 pcs
thumb image of 1.6ct Oval Facet Reddish Orange Fire Opal (ID: 367306)
1.64ct Fire Opal
9.42 x 7.39 x 4.98mm
USD 54.74
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ID: 3698211 pcs
thumb image of 5.8ct Oval Facet Reddish Orange Fire Opal (ID: 369821)
5.77ct Fire Opal
13.86 x 11.26 x 8.00mm
USD 187.12
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ID: 3238651 pcs
thumb image of 4.5ct Trillion Cabochon Multicolor Black Opal (ID: 323865)
4.46ct Black Opal
13.71 x 12.29 x 6.39mm
USD 178.40
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ID: 3672154 pcs
thumb image of 3.6ct Oval Facet Reddish Orange Fire Opal (ID: 367215)
3.62ct Fire Opal
7.81 x 5.91 x 4.29mm
USD 120.73
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ID: 3834231 pcs
thumb image of 0.8ct Round Facet Reddish Orange Fire Opal (ID: 383423)
0.84ct Fire Opal
7.16 x 3.90mm
USD 26.85
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ID: 4310791 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431079)
0.60ct Opal
6.09 x 5.26 x 3.83mm
USD 12.00
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ID: 3111281 pcs
thumb image of 1.5ct Pear Facet Multicolor Opal (ID: 311128)
1.49ct Opal
11.78 x 8.32 x 4.02mm
USD 59.60
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ID: 4312331 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431233)
0.62ct Opal
6.69 x 5.73 x 3.83mm
USD 12.40
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ID: 3459931 pcs
thumb image of 1ct Oval Facet Multicolor Opal (ID: 345993)
0.97ct Opal
8.99 x 6.99 x 4.22mm
USD 38.80
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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

Size Comparison Chart