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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: 4423221 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Opal in Matrix (ID: 442322)
2.72 ct Opal in Matrix
11.1 x 7.9 mm
$ 40.58
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ID: 3238641 pcs
thumb image of 5.2ct Pear Cabochon Multicolor Black Opal (ID: 323864)
5.21 ct Black Opal
16 x 10.9 mm
$ 208.40
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ID: 4648892 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Black Opal (ID: 464889)
1.71 ct Black Opal
8.1 x 6.2 mm
$ 51.30
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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: 4649474 pcs
thumb image of 1.6ct Round Cabochon Multicolor Black Opal (ID: 464947)
1.56 ct Black Opal
5 mm
$ 46.80
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ID: 4319702 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 431970)
1.55 ct Fire Opal
8.1 x 6 mm
$ 41.21
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ID: 4423241 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Opal in Matrix (ID: 442324)
2.72 ct Opal in Matrix
11.9 x 8.7 mm
$ 40.58
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ID: 3302481 pcs
thumb image of 5.5ct Pear Cabochon Multicolor Black Opal (ID: 330248)
5.45 ct Black Opal
17.4 x 11.1 mm
$ 218.00
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ID: 4621391 pcs
thumb image of 11.9ct Oval Cabochon Multicolor Opal (ID: 462139)
11.89 ct Opal
17.7 x 13.7 mm
$ 478.69
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ID: 4290341 pcs
thumb image of 1ct Oval Cabochon Orange Opal (ID: 429034)
0.95 ct Opal
8.2 x 6.1 mm
$ 26.60
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ID: 4422351 pcs
thumb image of 8.9ct Pear Cabochon Multicolor Opal in Matrix (ID: 442235)
8.87 ct Opal in Matrix
14.9 x 14.8 mm
$ 132.34
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ID: 4052711 pcs
thumb image of 1.1ct Oval Facet Orange Fire Opal (ID: 405271)
1.06 ct Fire Opal
8.8 x 6.9 mm
$ 24.92
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ID: 4648962 pcs
thumb image of 1.5ct Round Cabochon Multicolor Black Opal (ID: 464896)
1.50 ct Black Opal
6.1 mm
$ 45.00
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ID: 4421261 pcs
thumb image of 4.1ct Oval Cabochon Multicolor Opal in Matrix (ID: 442126)
4.06 ct Opal in Matrix
11.6 x 9.2 mm
$ 60.58
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ID: 3152391 pcs
thumb image of 1.9ct Oval Facet Multicolor Opal (ID: 315239)
1.88 ct Opal
11.4 x 8.3 mm
$ 75.20
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ID: 3298154 pcs
thumb image of 5.7ct Oval Cabochon Multicolor Black Opal (ID: 329815)
5.72 ct Black Opal
9.1 x 7.1 mm
$ 228.80
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ID: 4322441 pcs
thumb image of 0.8ct Oval Facet Orange Fire Opal (ID: 432244)
0.76 ct Fire Opal
8.3 x 6.1 mm
$ 20.21
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ID: 3297955 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Black Opal (ID: 329795)
2.70 ct Black Opal
7 x 5 mm
$ 108.00
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ID: 4421791 pcs
thumb image of 2.7ct Pear Cabochon Multicolor Opal in Matrix (ID: 442179)
2.69 ct Opal in Matrix
12.8 x 9 mm
$ 40.13
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ID: 4541682 pcs
thumb image of 2.5ct Oval Facet Orange Fire Opal (ID: 454168)
2.50 ct Fire Opal
8.7 x 6.9 mm
$ 65.85
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ID: 4623594 pcs
thumb image of 1.5ct Oval Facet Multicolor Opal (ID: 462359)
1.45 ct Opal
7 x 5 mm
$ 58.00
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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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