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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: 3668751 pcs
thumb image of 1.6ct Trillion Facet Reddish Orange Fire Opal (ID: 366875)
1.57 ct Fire Opal
8.9 x 8.9 mm
$ 61.51
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ID: 4504042 pcs
thumb image of 2.5ct Oval Facet Orange Fire Opal (ID: 450404)
2.51 ct Fire Opal
9 x 7.1 mm
$ 67.22
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ID: 4627244 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 462724)
1.32 ct Opal
6.9 x 5.1 mm
$ 52.80
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ID: 4495784 pcs
thumb image of 2.1ct Oval Facet Orange Fire Opal (ID: 449578)
2.10 ct Fire Opal
7.1 x 5.2 mm
$ 56.26
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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: 3683002 pcs
thumb image of 2.3ct Oval Cabochon Orange Opal (ID: 368300)
2.28 ct Opal
8.9 x 7.1 mm
$ 62.81
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ID: 3212371 pcs
thumb image of 1.1ct Oval Facet Multicolor Opal (ID: 321237)
1.14 ct Opal
9.4 x 7.3 mm
$ 45.60
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ID: 3668961 pcs
thumb image of 1ct Oval Facet Orange Fire Opal (ID: 366896)
1.01 ct Fire Opal
8.2 x 6.2 mm
$ 39.39
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ID: 4539122 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 453912)
1.52 ct Fire Opal
7.9 x 5.9 mm
$ 40.04
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ID: 4626814 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 462681)
1.75 ct Opal
7 x 5 mm
$ 70.00
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ID: 4506984 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 450698)
1.81 ct Fire Opal
6.9 x 5 mm
$ 48.47
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ID: 3833791 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383379)
0.57 ct Fire Opal
6.5 x 5.1 mm
$ 18.22
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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: 3153301 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 315330)
1.75 ct Opal
10.6 x 8.4 mm
$ 73.50
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ID: 3694381 pcs
thumb image of 1.7ct Oval Facet Reddish Orange Fire Opal (ID: 369438)
1.74 ct Fire Opal
9.9 x 8 mm
$ 56.43
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ID: 4319782 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 431978)
1.94 ct Fire Opal
8.9 x 7.1 mm
$ 51.58
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ID: 4627904 pcs
thumb image of 1.9ct Oval Facet Multicolor Opal (ID: 462790)
1.87 ct Opal
7 x 5 mm
$ 74.80
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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: 4294621 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 429462)
0.64 ct Opal
8 x 6.1 mm
$ 17.92
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ID: 4629011 pcs
thumb image of 1.2ct Oval Facet Multicolor Opal (ID: 462901)
1.24 ct Opal
9.1 x 7.1 mm
$ 49.60
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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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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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