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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1323): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4627224 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 462722)
1.64 ct Opal
7 x 5 mm
$ 65.60
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ID: 3306874 pcs
thumb image of 1.8ct Oval Cabochon Multicolor Chocolate Opal (ID: 330687)
1.82 ct Chocolate Opal
7.1 x 5.1 mm
$ 54.60
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ID: 4539052 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 453905)
1.87 ct Fire Opal
8 x 6.1 mm
$ 49.26
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ID: 4324533 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 432453)
2.02 ct Fire Opal
8 x 6.1 mm
$ 53.71
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ID: 3303486 pcs
thumb image of 4.6ct Oval Cabochon Multicolor Chocolate Opal (ID: 330348)
4.61 ct Chocolate Opal
8 x 6.1 mm
$ 138.30
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ID: 4422291 pcs
thumb image of 4.1ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442229)
4.07 ct Opal in Matrix
14.5 x 6.9 mm
$ 60.72
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ID: 3303334 pcs
thumb image of 3.4ct Oval Cabochon Multicolor Chocolate Opal (ID: 330333)
3.38 ct Chocolate Opal
8 x 6.1 mm
$ 101.40
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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: 4423891 pcs
thumb image of 3.9ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442389)
3.94 ct Opal in Matrix
14.4 x 8.6 mm
$ 58.78
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ID: 4621371 pcs
thumb image of 13.6ct Oval Cabochon Multicolor Opal (ID: 462137)
13.64 ct Opal
18.5 x 15 mm
$ 549.15
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ID: 4541132 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 454113)
1.52 ct Fire Opal
8 x 6 mm
$ 40.04
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ID: 4421221 pcs
thumb image of 4.3ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442122)
4.26 ct Opal in Matrix
12.7 x 10.2 mm
$ 63.56
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ID: 3696761 pcs
thumb image of 4.7ct Diamond-Cut Reddish Orange Fire Opal (ID: 369676)
4.74 ct Fire Opal
12.3 mm
$ 153.72
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ID: 39160420 pcs
thumb image of 7.4ct Oval Cabochon Multicolor Opal Doublet (ID: 391604)
7.43 ct Opal Doublet
6.2 x 4.1 mm
$ 124.90
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ID: 3199551 pcs
thumb image of 1.2ct Oval Facet Multicolor Opal (ID: 319955)
1.18 ct Opal
9.1 x 6.9 mm
$ 53.10
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ID: 4421201 pcs
thumb image of 3.8ct Baguette Cabochon Multicolor Opal in Matrix (ID: 442120)
3.82 ct Opal in Matrix
13 x 11.7 mm
$ 56.99
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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: 4547812 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 454781)
1.63 ct Fire Opal
7.9 x 6 mm
$ 42.93
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ID: 4648942 pcs
thumb image of 3ct Round Cabochon Multicolor Black Opal (ID: 464894)
2.98 ct Black Opal
7.9 mm
$ 89.40
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ID: 4540264 pcs
thumb image of 2.3ct Oval Facet Orange Fire Opal (ID: 454026)
2.34 ct Fire Opal
7.9 x 5.9 mm
$ 61.64
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ID: 4621381 pcs
thumb image of 13.4ct Oval Cabochon Multicolor Opal (ID: 462138)
13.39 ct Opal
19.7 x 14.9 mm
$ 539.08
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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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