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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1401): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3682972 pcs
thumb image of 1.4ct Oval Cabochon Multicolor Opal (ID: 368297)
1.43ct Opal
8.08 x 6.23 x 3.39mm
USD 39.40
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ID: 2496652 pcs
thumb image of 1.4ct Oval Cabochon Multicolor Opal Doublet (ID: 249665)
1.44ct Opal Doublet
7.96 x 6.03 x 1.60mm
USD 36.23
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ID: 3048401 pcs
thumb image of 1.7ct Cushion-Cut Multicolor Opal (ID: 304840)
1.72ct Opal
12.12 x 6.75 x 4.62mm
USD 72.24
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ID: 4294081 pcs
thumb image of 1ct Oval Cabochon Multicolor Opal (ID: 429408)
0.99ct Opal
8.19 x 6.18 x 4.04mm
USD 27.72
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ID: 4207141 pcs
thumb image of 3.9ct Fancy Cabochon Multicolor Opal Doublet (ID: 420714)
3.89ct Opal Doublet
17.88 x 8.25 x 2.56mm
USD 62.24
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ID: 4319032 pcs
thumb image of 1.2ct Oval Facet Orange Fire Opal (ID: 431903)
1.24ct Fire Opal
8.05 x 6.06 x 3.46mm
USD 32.97
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ID: 3094821 pcs
thumb image of 0.8ct Oval Facet Multicolor Opal (ID: 309482)
0.78ct Opal
8.40 x 6.20 x 3.61mm
USD 33.54
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ID: 3238651 pcs
thumb image of 4.5ct Trillion Cabochon Multicolor Black Opal (ID: 323865)
4.46ct Black Opal
13.71 x 12.29 x 6.39mm
USD 178.40
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ID: 4073591 pcs
thumb image of 4.6ct Octagon / Scissor Cut Yellow Orange Fire Opal (ID: 407359)
4.62ct Fire Opal
11.13 x 10.90 x 7.32mm
USD 71.84
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ID: 3082191 pcs
thumb image of 1.2ct Pear Facet Multicolor Opal (ID: 308219)
1.16ct Opal
10.90 x 7.30 x 4.70mm
USD 49.88
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ID: 3913412 pcs
thumb image of 3.5ct Pear Cabochon Multicolor Opal Doublet (ID: 391341)
3.53ct Opal Doublet
12.92 x 8.17 x 2.24mm
USD 59.34
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ID: 3082211 pcs
thumb image of 1.6ct Pear Facet Multicolor Opal (ID: 308221)
1.59ct Opal
11.05 x 8.83 x 5.28mm
USD 68.37
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ID: 3833781 pcs
thumb image of 0.9ct Oval Facet Reddish Orange Fire Opal (ID: 383378)
0.85ct Fire Opal
7.25 x 6.21 x 4.06mm
USD 27.17
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ID: 35309916 pcs
thumb image of 11.6ct Oval Cabochon Multicolor Opal Doublet (ID: 353099)
11.59ct Opal Doublet
8.06 x 6.05 x 1.69mm
USD 52.16
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ID: 3004531 pcs
thumb image of 28.6ct Oval Cabochon Multicolor Boulder Opal (ID: 300453)
28.58ct Boulder Opal
23.12 x 18.45 x 7.13mm
USD 200.06
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ID: 4200711 pcs
thumb image of 4.7ct Oval Facet Orange Red Fire Opal (ID: 420071)
4.68ct Fire Opal
12.77 x 10.95 x 7.71mm
USD 151.77
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ID: 3644151 pcs
thumb image of 1.9ct Pear Facet Multicolor Opal (ID: 364415)
1.90ct Opal
13.21 x 8.80 x 5.10mm
USD 76.00
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ID: 4324423 pcs
thumb image of 1.4ct Round Cabochon Multicolor Opal (ID: 432442)
1.43ct Opal
5.50 x 3.67mm
USD 40.04
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ID: 4207441 pcs
thumb image of 12.9ct Oval Cabochon Multicolor Boulder Opal (ID: 420744)
12.87ct Boulder Opal
21.01 x 9.97 x 6.75mm
USD 77.22
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ID: 4312821 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431282)
0.61ct Opal
6.02 x 5.44 x 3.90mm
USD 12.20
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ID: 4421891 pcs
thumb image of 5.7ct Oval Cabochon Multicolor Opal in Matrix (ID: 442189)
5.66ct Opal in Matrix
17.37 x 9.66 x 6.40mm
USD 84.45
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Opal
Opal, more than any other gem, each opalis 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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