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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1401): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4322511 pcs
thumb image of 0.9ct Oval Facet Orange Fire Opal (ID: 432251)
0.93ct Fire Opal
7.95 x 6.04 x 4.50mm
USD 24.73
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ID: 4294941 pcs
thumb image of 0.8ct Oval Cabochon Multicolor Opal (ID: 429494)
0.77ct Opal
7.91 x 6.04 x 3.29mm
USD 21.56
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ID: 3689104 pcs
thumb image of 2.1ct Oval Cabochon Multicolor Opal (ID: 368910)
2.05ct Opal
7.12 x 5.22 x 2.79mm
USD 56.07
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ID: 3669101 pcs
thumb image of 2ct Octagon Facet Orange Fire Opal (ID: 366910)
2.02ct Fire Opal
13.83 x 5.66 x 3.75mm
USD 78.78
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ID: 3051151 pcs
thumb image of 2ct Trillion Cabochon Multicolor Opal (ID: 305115)
2.02ct Opal
10.65 x 9.99 x 4.17mm
USD 66.66
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ID: 3303024 pcs
thumb image of 3.2ct Oval Cabochon Multicolor Chocolate Opal (ID: 330302)
3.17ct Chocolate Opal
7.99 x 6.07 x 3.44mm
USD 95.10
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ID: 4287942 pcs
thumb image of 1.6ct Oval Cabochon Multicolor Opal (ID: 428794)
1.57ct Opal
8.22 x 6.24 x 3.54mm
USD 43.96
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ID: 3686052 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Opal (ID: 368605)
1.71ct Opal
8.22 x 6.19 x 3.51mm
USD 46.77
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ID: 3652301 pcs
thumb image of 17.6ct Fancy Cabochon Multicolor Boulder Opal (ID: 365230)
17.55ct Boulder Opal
19.43 x 13.28 x 8.39mm
USD 122.85
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ID: 2940484 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal Doublet (ID: 294048)
1.98ct Opal Doublet
6.99 x 5.16 x 1.79mm
USD 59.40
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ID: 4319702 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 431970)
1.55ct Fire Opal
8.05 x 5.99 x 4.40mm
USD 41.21
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ID: 3668941 pcs
thumb image of 1ct Oval Facet Reddish Orange Fire Opal (ID: 366894)
1.00ct Fire Opal
8.34 x 6.58 x 3.90mm
USD 39.00
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ID: 4423851 pcs
thumb image of 4.9ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442385)
4.94ct Opal in Matrix
11.08 x 10.80 x 6.27mm
USD 73.70
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ID: 3624054 pcs
thumb image of 2.1ct Pear Cabochon Multicolor Opal Doublet (ID: 362405)
2.08ct Opal Doublet
7.99 x 5.08 x 1.85mm
USD 38.00
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ID: 2642961 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Opal (ID: 264296)
1.71ct Opal
10.55 x 7.30 x 4.54mm
USD 41.04
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ID: 4323721 pcs
thumb image of 0.5ct Round Cabochon Multicolor Opal (ID: 432372)
0.46ct Opal
5.74 x 3.20mm
USD 12.88
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ID: 3670361 pcs
thumb image of 3.2ct Oval Facet Reddish Orange Fire Opal (ID: 367036)
3.20ct Fire Opal
11.33 x 9.49 x 6.63mm
USD 106.72
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ID: 3873041 pcs
thumb image of 1.2ct Oval Facet Reddish Orange Fire Opal (ID: 387304)
1.24ct Fire Opal
8.58 x 7.13 x 4.07mm
USD 55.80
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ID: 4321421 pcs
thumb image of 0.5ct Oval Cabochon Multicolor Opal (ID: 432142)
0.54ct Opal
5.60 x 5.12 x 3.98mm
USD 15.12
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ID: 3238631 pcs
thumb image of 2.2ct Pear Cabochon Multicolor Black Opal (ID: 323863)
2.19ct Black Opal
15.00 x 7.57 x 4.53mm
USD 87.60
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ID: 4321961 pcs
thumb image of 0.5ct Oval Facet Orange Fire Opal (ID: 432196)
0.51ct Fire Opal
6.90 x 5.23 x 3.62mm
USD 13.56
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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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