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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1339): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4506994 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 450699)
2.02 ct Fire Opal
7.1 x 5.1 mm
$ 54.10
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ID: 4294101 pcs
thumb image of 0.6ct Oval Cabochon White Opal (ID: 429410)
0.57 ct Opal
7.9 x 5.9 mm
$ 15.96
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ID: 3832011 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383201)
0.56 ct Fire Opal
5.9 x 5.2 mm
$ 17.93
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ID: 4495592 pcs
thumb image of 1.7ct Oval Facet Orange Fire Opal (ID: 449559)
1.65 ct Fire Opal
8.1 x 6.1 mm
$ 44.20
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ID: 4626844 pcs
thumb image of 1.7ct Oval Facet Multicolor Opal (ID: 462684)
1.68 ct Opal
6.7 x 5 mm
$ 67.20
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ID: 4322974 pcs
thumb image of 2.2ct Oval Facet Orange Fire Opal (ID: 432297)
2.15 ct Fire Opal
7.1 x 5.2 mm
$ 57.17
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ID: 3993262 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 399326)
1.82 ct Opal
8.1 x 6.2 mm
$ 78.26
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ID: 4073541 pcs
thumb image of 2.5ct Oval Facet Yellow Orange Fire Opal (ID: 407354)
2.50 ct Fire Opal
11.3 x 8.5 mm
$ 38.88
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ID: 4628364 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 462836)
1.60 ct Opal
7 x 5.1 mm
$ 64.00
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ID: 4622141 pcs
thumb image of 16.8ct Oval Cabochon Multicolor Opal (ID: 462214)
16.83 ct Opal
20.8 x 16.6 mm
$ 677.58
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ID: 4495864 pcs
thumb image of 2.4ct Oval Facet Orange Fire Opal (ID: 449586)
2.36 ct Fire Opal
7.7 x 6 mm
$ 63.22
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ID: 3832081 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383208)
0.59 ct Fire Opal
7 x 5.2 mm
$ 18.89
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ID: 3118621 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 311862)
1.59 ct Opal
10 x 8.1 mm
$ 63.60
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ID: 4319402 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 431940)
1.48 ct Fire Opal
8 x 6 mm
$ 39.35
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ID: 4540274 pcs
thumb image of 2.3ct Oval Facet Orange Fire Opal (ID: 454027)
2.32 ct Fire Opal
7.9 x 6 mm
$ 61.11
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ID: 3804061 pcs
thumb image of 15.9ct Pear Cabochon Yellow Fire Opal (ID: 380406)
15.86 ct Fire Opal
28.8 x 14.2 mm
$ 342.73
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ID: 4542251 pcs
thumb image of 0.8ct Oval Facet Orange Fire Opal (ID: 454225)
0.75 ct Fire Opal
7.9 x 6 mm
$ 19.76
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ID: 4322924 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 432292)
1.94 ct Fire Opal
7.2 x 5.2 mm
$ 51.58
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ID: 3686012 pcs
thumb image of 1.8ct Oval Cabochon Multicolor Opal (ID: 368601)
1.81 ct Opal
8.2 x 6.3 mm
$ 49.50
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ID: 3832361 pcs
thumb image of 0.8ct Oval Facet Reddish Orange Fire Opal (ID: 383236)
0.75 ct Fire Opal
7.7 x 6.4 mm
$ 19.94
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ID: 3804071 pcs
thumb image of 18.4ct Pear Cabochon Yellow Fire Opal (ID: 380407)
18.36 ct Fire Opal
31.3 x 15.4 mm
$ 396.76
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Opal
More than any other gem, each opal is 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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