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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1347): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4293391 pcs
thumb image of 0.8ct Oval Cabochon White Opal (ID: 429339)
0.82 ct Opal
7.9 x 6 mm
$ 22.96
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ID: 4420011 pcs
thumb image of 6.2ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442001)
6.21 ct Opal in Matrix
14.7 x 11.1 mm
$ 92.65
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ID: 3704001 pcs
thumb image of 3.2ct Cushion-Cut Reddish Orange Fire Opal (ID: 370400)
3.22 ct Fire Opal
14.8 x 8 mm
$ 144.90
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ID: 3080931 pcs
thumb image of 1.6ct Pear Facet Multicolor Opal (ID: 308093)
1.64 ct Opal
12.1 x 8.9 mm
$ 71.38
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ID: 3298015 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Black Opal (ID: 329801)
2.44 ct Black Opal
7 x 5 mm
$ 97.60
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ID: 3673001 pcs
thumb image of 1.1ct Oval Facet Reddish Orange Fire Opal (ID: 367300)
1.12 ct Fire Opal
9.3 x 6.9 mm
$ 37.39
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ID: 4420051 pcs
thumb image of 3.4ct Oval Cabochon Multicolor Opal in Matrix (ID: 442005)
3.41 ct Opal in Matrix
12.7 x 9.6 mm
$ 50.88
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ID: 4543082 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 454308)
1.85 ct Fire Opal
8 x 6.1 mm
$ 48.73
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ID: 3294934 pcs
thumb image of 1.6ct Oval Cabochon Multicolor Black Opal (ID: 329493)
1.62 ct Black Opal
5.9 x 4 mm
$ 64.80
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ID: 4622171 pcs
thumb image of 12.4ct Oval Cabochon Multicolor Opal (ID: 462217)
12.42 ct Opal
24.1 x 15.1 mm
$ 500.03
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ID: 3297864 pcs
thumb image of 2.5ct Oval Cabochon Multicolor Black Opal (ID: 329786)
2.47 ct Black Opal
7 x 5 mm
$ 98.80
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ID: 4423851 pcs
thumb image of 4.9ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442385)
4.94 ct Opal in Matrix
11.1 x 10.8 mm
$ 73.70
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ID: 4421271 pcs
thumb image of 2.9ct Pear Cabochon Multicolor Opal in Matrix (ID: 442127)
2.94 ct Opal in Matrix
10.9 x 10.5 mm
$ 43.86
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ID: 4648902 pcs
thumb image of 2.1ct Oval Cabochon Multicolor Black Opal (ID: 464890)
2.09 ct Black Opal
8 x 6.1 mm
$ 62.70
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ID: 4422321 pcs
thumb image of 6.4ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442232)
6.41 ct Opal in Matrix
12.7 x 10.4 mm
$ 95.64
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ID: 3145591 pcs
thumb image of 1.6ct Marquise Facet Multicolor Opal (ID: 314559)
1.61 ct Opal
15.2 x 6.9 mm
$ 64.40
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ID: 4468095 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Opal Doublet (ID: 446809)
2.40 ct Opal Doublet
6.8 x 4.9 mm
$ 36.00
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ID: 3830931 pcs
thumb image of 10.9ct Pear Cabochon Yellow Fire Opal (ID: 383093)
10.94 ct Fire Opal
22.1 x 13.7 mm
$ 233.57
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ID: 4648882 pcs
thumb image of 2ct Oval Cabochon Multicolor Black Opal (ID: 464888)
2.04 ct Black Opal
8.1 x 6.1 mm
$ 61.20
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ID: 4322994 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 432299)
2.00 ct Fire Opal
7 x 5.1 mm
$ 53.18
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ID: 4421781 pcs
thumb image of 2.9ct Oval Cabochon Multicolor Opal in Matrix (ID: 442178)
2.88 ct Opal in Matrix
11.7 x 8.5 mm
$ 42.97
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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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