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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1406): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3212261 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 321226)
1.57ct Opal
10.04 x 8.12 x 4.64mm
USD 62.80
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ID: 3164341 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 316434)
1.58ct Opal
10.07 x 8.17 x 5.03mm
USD 63.20
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ID: 4292551 pcs
thumb image of 0.8ct Oval Cabochon Multicolor Opal (ID: 429255)
0.75ct Opal
8.21 x 6.12 x 3.59mm
USD 21.00
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ID: 3693731 pcs
thumb image of 3.4ct Trillion Facet Reddish Orange Fire Opal (ID: 369373)
3.43ct Fire Opal
13.22 x 10.60 x 6.30mm
USD 111.23
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ID: 4056911 pcs
thumb image of 1.1ct Oval Facet Orange Fire Opal (ID: 405691)
1.05ct Fire Opal
8.91 x 6.77 x 4.71mm
USD 24.76
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ID: 3080931 pcs
thumb image of 1.6ct Pear Facet Multicolor Opal (ID: 308093)
1.64ct Opal
12.10 x 8.89 x 5.03mm
USD 71.38
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ID: 3303084 pcs
thumb image of 4.2ct Oval Cabochon Multicolor Chocolate Opal (ID: 330308)
4.20ct Chocolate Opal
8.05 x 6.10 x 4.38mm
USD 126.00
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ID: 3683032 pcs
thumb image of 2.3ct Oval Cabochon Multicolor Opal (ID: 368303)
2.25ct Opal
9.20 x 7.17 x 3.68mm
USD 61.99
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ID: 4293091 pcs
thumb image of 0.7ct Oval Cabochon Multicolor Opal (ID: 429309)
0.71ct Opal
8.14 x 6.06 x 3.39mm
USD 19.88
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ID: 3579111 pcs
thumb image of 16.6ct Fancy Cabochon Multicolor Opal Doublet (ID: 357911)
16.57ct Opal Doublet
27.40 x 20.52 x 3.84mm
USD 107.70
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ID: 3094041 pcs
thumb image of 0.8ct Oval Facet Multicolor Opal (ID: 309404)
0.75ct Opal
8.10 x 6.25 x 4.02mm
USD 32.25
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ID: 4423881 pcs
thumb image of 5ct Pear Cabochon Multicolor Opal in Matrix (ID: 442388)
5.00ct Opal in Matrix
14.59 x 10.53 x 6.35mm
USD 74.60
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ID: 4319042 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 431904)
1.82ct Fire Opal
9.09 x 7.13 x 3.75mm
USD 48.39
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ID: 3683052 pcs
thumb image of 2.3ct Oval Cabochon Multicolor Opal (ID: 368305)
2.25ct Opal
9.10 x 7.05 x 3.78mm
USD 61.99
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ID: 3674154 pcs
thumb image of 3.8ct Oval Facet Reddish Orange Fire Opal (ID: 367415)
3.82ct Fire Opal
8.25 x 6.04 x 4.23mm
USD 127.51
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ID: 3303114 pcs
thumb image of 3.2ct Oval Cabochon Multicolor Chocolate Opal (ID: 330311)
3.23ct Chocolate Opal
7.97 x 6.06 x 3.74mm
USD 96.90
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ID: 3118591 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 311859)
1.27ct Opal
10.13 x 7.72 x 4.38mm
USD 50.80
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ID: 4223121 pcs
thumb image of 1.9ct Oval Cabochon Multicolor Opal (ID: 422312)
1.88ct Opal
10.26 x 7.76 x 4.95mm
USD 41.36
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ID: 4206111 pcs
thumb image of 8.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420611)
8.39ct Opal Doublet
21.52 x 15.45 x 2.60mm
USD 134.24
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ID: 3297985 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Black Opal (ID: 329798)
2.36ct Black Opal
6.95 x 5.01 x 2.80mm
USD 94.40
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ID: 4323721 pcs
thumb image of 0.5ct Round Cabochon Multicolor Opal (ID: 432372)
0.46ct Opal
5.74 x 3.20mm
USD 12.88
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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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