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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1471): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 4312301 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431230)
0.57ct Opal
6.10 x 5.26 x 3.74mm
USD 11.40
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ID: 3302481 pcs
thumb image of 5.5ct Pear Cabochon Multicolor Black Opal (ID: 330248)
5.45ct Black Opal
17.44 x 11.13 x 6.23mm
USD 218.00
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ID: 4419521 pcs
thumb image of 5.6ct Oval Cabochon Multicolor Opal in Matrix (ID: 441952)
5.59ct Opal in Matrix
13.81 x 10.12 x 7.45mm
USD 83.40
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ID: 3830521 pcs
thumb image of 1ct Cushion-Cut Reddish Orange Fire Opal (ID: 383052)
0.97ct Fire Opal
7.38 x 7.35 x 3.58mm
USD 31.06
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ID: 3165491 pcs
thumb image of 1.4ct Oval Facet Multicolor Opal (ID: 316549)
1.39ct Opal
10.04 x 8.01 x 4.89mm
USD 58.38
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ID: 4322954 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 432295)
1.43ct Fire Opal
6.85 x 5.02 x 2.79mm
USD 38.02
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ID: 2698361 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 269836)
1.30ct Opal
9.46 x 6.26 x 4.82mm
USD 20.10
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ID: 3107461 pcs
thumb image of 10.5ct Pear Cabochon Multicolor Boulder Opal (ID: 310746)
10.52ct Boulder Opal
21.67 x 12.99 x 5.39mm
USD 73.64
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ID: 3471951 pcs
thumb image of 0.6ct Oval Facet Multicolor Opal (ID: 347195)
0.64ct Opal
7.34 x 5.83 x 4.29mm
USD 26.88
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ID: 4322994 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 432299)
2.00ct Fire Opal
7.02 x 5.07 x 3.99mm
USD 53.18
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ID: 3579721 pcs
thumb image of 6.2ct Fancy Cabochon Multicolor Opal Doublet (ID: 357972)
6.16ct Opal Doublet
17.51 x 13.89 x 3.36mm
USD 40.04
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ID: 3080901 pcs
thumb image of 1.8ct Pear Facet Multicolor Opal (ID: 308090)
1.76ct Opal
12.20 x 8.37 x 4.62mm
USD 75.68
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ID: 3212251 pcs
thumb image of 2ct Oval Facet Multicolor Opal (ID: 321225)
1.96ct Opal
10.17 x 8.09 x 6.03mm
USD 78.40
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ID: 3184201 pcs
thumb image of 1.2ct Oval Facet Multicolor Opal (ID: 318420)
1.19ct Opal
9.00 x 7.11 x 5.04mm
USD 49.98
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ID: 3158781 pcs
thumb image of 1ct Pear Facet Multicolor Opal (ID: 315878)
0.98ct Opal
11.16 x 6.79 x 4.01mm
USD 41.16
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ID: 4322321 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 432232)
0.61ct Opal
6.50 x 4.85 x 4.05mm
USD 17.08
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ID: 4319921 pcs
thumb image of 0.9ct Oval Cabochon Multicolor Opal (ID: 431992)
0.85ct Opal
7.17 x 6.12 x 4.10mm
USD 23.80
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ID: 4206151 pcs
thumb image of 5.9ct Fancy Cabochon Multicolor Opal Doublet (ID: 420615)
5.90ct Opal Doublet
21.75 x 14.01 x 2.46mm
USD 94.40
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ID: 4321542 pcs
thumb image of 1.2ct Oval Facet Orange Fire Opal (ID: 432154)
1.16ct Fire Opal
7.91 x 6.09 x 3.17mm
USD 30.84
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ID: 3111231 pcs
thumb image of 1.7ct Pear Facet Multicolor Opal (ID: 311123)
1.66ct Opal
11.05 x 8.00 x 5.57mm
USD 66.40
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ID: 3671672 pcs
thumb image of 2.7ct Oval Facet Reddish Orange Fire Opal (ID: 367167)
2.67ct Fire Opal
9.15 x 6.78 x 4.59mm
USD 89.04
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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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