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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1388): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4206211 pcs
thumb image of 7.9ct Fancy Cabochon Multicolor Opal Doublet (ID: 420621)
7.85 ct Opal Doublet
21.7 x 14.2 mm
$ 125.60
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ID: 4508441 pcs
thumb image of 11.3ct Round Cabochon Multicolor Chocolate Opal (ID: 450844)
11.31 ct Chocolate Opal
16.2 mm
$ 498.43
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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: 3705261 pcs
thumb image of 2.3ct Oval Facet Multicolor Opal (ID: 370526)
2.31 ct Opal
11.9 x 9.1 mm
$ 97.02
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ID: 4322871 pcs
thumb image of 0.6ct Oval Cabochon White Opal (ID: 432287)
0.58 ct Opal
7.2 x 6.2 mm
$ 16.24
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ID: 3306324 pcs
thumb image of 2.5ct Oval Cabochon Multicolor Chocolate Opal (ID: 330632)
2.48 ct Chocolate Opal
7.1 x 5.1 mm
$ 74.40
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ID: 4056661 pcs
thumb image of 0.9ct Oval Facet Orange Fire Opal (ID: 405666)
0.90 ct Fire Opal
8.8 x 6.8 mm
$ 21.22
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ID: 3294924 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Black Opal (ID: 329492)
1.74 ct Black Opal
5.9 x 4 mm
$ 69.60
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ID: 3302461 pcs
thumb image of 6.9ct Pear Cabochon Multicolor Black Opal (ID: 330246)
6.92 ct Black Opal
18.5 x 13.3 mm
$ 276.80
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ID: 3695701 pcs
thumb image of 1.2ct Oval Facet Orange Fire Opal (ID: 369570)
1.16 ct Fire Opal
9.5 x 7.2 mm
$ 37.62
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ID: 3297995 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Black Opal (ID: 329799)
2.67 ct Black Opal
7 x 5 mm
$ 106.80
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ID: 4539092 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 453909)
1.88 ct Fire Opal
8.9 x 7.1 mm
$ 49.52
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ID: 4540324 pcs
thumb image of 2.6ct Oval Facet Orange Fire Opal (ID: 454032)
2.60 ct Fire Opal
7.1 x 5.3 mm
$ 68.48
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ID: 3294964 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Black Opal (ID: 329496)
1.74 ct Black Opal
5.9 x 4 mm
$ 69.60
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ID: 3302501 pcs
thumb image of 7.4ct Pear Cabochon Multicolor Black Opal (ID: 330250)
7.39 ct Black Opal
15.6 x 11.4 mm
$ 295.60
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ID: 3080971 pcs
thumb image of 2.2ct Pear Facet Multicolor Opal (ID: 308097)
2.19 ct Opal
12.3 x 9.2 mm
$ 94.17
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ID: 4420041 pcs
thumb image of 4.5ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442004)
4.49 ct Opal in Matrix
10.3 x 9.4 mm
$ 66.99
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ID: 3297985 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Black Opal (ID: 329798)
2.36 ct Black Opal
7 x 5 mm
$ 94.40
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ID: 4312771 pcs
thumb image of 0.8ct Oval Cabochon Multicolor Opal (ID: 431277)
0.82 ct Opal
7.2 x 5.9 mm
$ 16.40
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ID: 4200711 pcs
thumb image of 4.7ct Oval Facet Orange Red Fire Opal (ID: 420071)
4.68 ct Fire Opal
12.8 x 11 mm
$ 151.77
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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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Opal
Opal Gemstone Information Opal Ring Information

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

Size Comparison Chart