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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1400): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3182691 pcs
thumb image of 1ct Oval Facet Multicolor Opal (ID: 318269)
0.96ct Opal
9.00 x 7.01 x 4.22mm
USD 40.32
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ID: 3029151 pcs
thumb image of 23.5ct Round Cabochon Multicolor Boulder Opal (ID: 302915)
23.48ct Boulder Opal
21.30 x 6.95mm
USD 164.36
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ID: 3166211 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 316621)
1.34ct Opal
10.03 x 8.09 x 4.38mm
USD 56.28
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ID: 3080951 pcs
thumb image of 1.5ct Pear Facet Multicolor Opal (ID: 308095)
1.54ct Opal
11.05 x 8.19 x 5.56mm
USD 64.68
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ID: 3671682 pcs
thumb image of 2.4ct Oval Facet Reddish Orange Fire Opal (ID: 367168)
2.42ct Fire Opal
8.74 x 6.67 x 4.28mm
USD 80.71
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ID: 3164581 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 316458)
1.59ct Opal
10.20 x 8.07 x 5.10mm
USD 66.78
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ID: 3082191 pcs
thumb image of 1.2ct Pear Facet Multicolor Opal (ID: 308219)
1.16ct Opal
10.90 x 7.30 x 4.70mm
USD 49.88
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ID: 4287902 pcs
thumb image of 1.8ct Oval Cabochon Multicolor Opal (ID: 428790)
1.81ct Opal
8.19 x 6.12 x 3.69mm
USD 50.68
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ID: 3145591 pcs
thumb image of 1.6ct Marquise Facet Multicolor Opal (ID: 314559)
1.61ct Opal
15.24 x 6.87 x 4.17mm
USD 64.40
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ID: 3471931 pcs
thumb image of 0.7ct Oval Facet Multicolor Opal (ID: 347193)
0.73ct Opal
7.96 x 6.01 x 4.37mm
USD 30.66
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ID: 4051991 pcs
thumb image of 1.7ct Oval Facet Orange Fire Opal (ID: 405199)
1.68ct Fire Opal
11.03 x 8.60 x 4.88mm
USD 39.50
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ID: 4293031 pcs
thumb image of 0.9ct Oval Cabochon Multicolor Opal (ID: 429303)
0.90ct Opal
8.09 x 6.10 x 3.64mm
USD 25.20
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ID: 3118591 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 311859)
1.27ct Opal
10.13 x 7.72 x 4.38mm
USD 50.80
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ID: 4206781 pcs
thumb image of 11.9ct Fancy Cabochon Multicolor Boulder Opal (ID: 420678)
11.91ct Boulder Opal
23.63 x 10.59 x 5.57mm
USD 71.46
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ID: 3118541 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 311854)
1.64ct Opal
10.16 x 8.01 x 5.02mm
USD 65.60
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ID: 3108151 pcs
thumb image of 16.3ct Oval Cabochon Multicolor Boulder Opal (ID: 310815)
16.32ct Boulder Opal
18.73 x 14.73 x 7.11mm
USD 114.24
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ID: 3830901 pcs
thumb image of 8.6ct Pear Cabochon Yellow Orange Fire Opal (ID: 383090)
8.58ct Fire Opal
25.08 x 11.50 x 6.49mm
USD 183.18
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ID: 4312801 pcs
thumb image of 0.9ct Oval Cabochon Multicolor Opal (ID: 431280)
0.91ct Opal
7.04 x 6.54 x 4.14mm
USD 18.20
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ID: 4322934 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 432293)
1.64ct Fire Opal
6.94 x 5.12 x 3.05mm
USD 43.61
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ID: 3145621 pcs
thumb image of 1.4ct Marquise Facet Multicolor Opal (ID: 314562)
1.35ct Opal
13.88 x 6.56 x 4.08mm
USD 54.00
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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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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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