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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (265): Australian Opal Gems Opal, Opal Doublet, Boulder Opal, Black Opal Clear All
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ID: 4032781 pcs
thumb image of 14.8ct Carved Turtle Multicolor Opal (ID: 403278)
14.84 ct Opal
25.3 x 15.3 mm
$ 68.12
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ID: 4618561 pcs
thumb image of 0.6ct Pear Cabochon Multicolor Opal Doublet (ID: 461856)
0.59 ct Opal Doublet
7.3 x 5.2 mm
$ 8.88
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ID: 4492091 pcs
thumb image of 0.9ct Marquise Cabochon Multicolor Opal Doublet (ID: 449209)
0.89 ct Opal Doublet
10.2 x 5.1 mm
$ 12.99
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ID: 4206111 pcs
thumb image of 8.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420611)
8.39 ct Opal Doublet
21.5 x 15.5 mm
$ 134.24
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ID: 39160420 pcs
thumb image of 7.4ct Oval Cabochon Multicolor Opal Doublet (ID: 391604)
7.43 ct Opal Doublet
6.2 x 4.1 mm
$ 124.90
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ID: 3913222 pcs
thumb image of 5.5ct Oval Cabochon Blue Opal Doublet (ID: 391322)
5.49 ct Opal Doublet
17.5 x 7.6 mm
$ 121.60
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ID: 44691720 pcs
thumb image of 7.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446917)
7.61 ct Opal Doublet
6.3 x 4.2 mm
$ 114.15
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ID: 4619501 pcs
thumb image of 0.6ct Pear Cabochon Multicolor Opal Doublet (ID: 461950)
0.60 ct Opal Doublet
8.2 x 5.2 mm
$ 9.03
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ID: 44691620 pcs
thumb image of 7.5ct Oval Cabochon Multicolor Opal Doublet (ID: 446916)
7.51 ct Opal Doublet
6 x 4.1 mm
$ 112.65
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ID: 3915922 pcs
thumb image of 9.5ct Oval Cabochon Blue Opal Doublet (ID: 391592)
9.53 ct Opal Doublet
21.9 x 9.7 mm
$ 211.09
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ID: 44690920 pcs
thumb image of 7ct Oval Cabochon Multicolor Opal Doublet (ID: 446909)
7.03 ct Opal Doublet
6.1 x 4 mm
$ 105.45
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ID: 4206181 pcs
thumb image of 10.2ct Fancy Cabochon Multicolor Opal Doublet (ID: 420618)
10.21 ct Opal Doublet
25 x 14.1 mm
$ 163.36
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ID: 2496652 pcs
thumb image of 1.4ct Oval Cabochon Blue Opal Doublet (ID: 249665)
1.44 ct Opal Doublet
8 x 6 mm
$ 36.23
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ID: 4468064 pcs
thumb image of 2.5ct Marquise Cabochon Multicolor Opal Doublet (ID: 446806)
2.47 ct Opal Doublet
9.8 x 4.8 mm
$ 37.05
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ID: 4469342 pcs
thumb image of 15.7ct Fancy Cabochon Blue Opal Doublet (ID: 446934)
15.67 ct Opal Doublet
26.1 x 11 mm
$ 235.05
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ID: 3913402 pcs
thumb image of 5.5ct Pear Cabochon Blue Opal Doublet (ID: 391340)
5.50 ct Opal Doublet
14.4 x 10 mm
$ 92.46
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ID: 4468053 pcs
thumb image of 2.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446805)
2.55 ct Opal Doublet
8.1 x 6 mm
$ 38.25
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ID: 3579721 pcs
thumb image of 6.2ct Fancy Cabochon Blue Opal Doublet (ID: 357972)
6.16 ct Opal Doublet
17.5 x 13.9 mm
$ 40.04
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ID: 4468033 pcs
thumb image of 2ct Pear Cabochon Multicolor Opal Doublet (ID: 446803)
2.03 ct Opal Doublet
8.2 x 5.1 mm
$ 30.45
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ID: 3652231 pcs
thumb image of 13.5ct Fancy Cabochon Multicolor Boulder Opal (ID: 365223)
13.52 ct Boulder Opal
26.5 x 11.8 mm
$ 94.64
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ID: 3218361 pcs
thumb image of 13.4ct Pear Cabochon Multicolor Boulder Opal (ID: 321836)
13.35 ct Boulder Opal
21.4 x 15 mm
$ 93.45
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Australian Opal Gems
Australia is the most important source for fine opal gemstones. Australian opals include black opal, boulder opal, crystal opal, fire opal and white opal. Famous opal deposits in New South Wales are at Lightning Ridge and White Cliffs, in South Australia, and also at Coober Pedy and Andamooka. Other opal deposits are also found in Queensland. Australia is the main source of the world's finest and largest supply of precious opal, including the rarest and most valuable Australian black opal. The best black opal is thought to come from Lightning Ridge in New South Wales. Australian opal is known for its incredible play of color and excellent stability. Opal gemstones make wonderfully unique and interesting jewelry. In 1993, Australia declared opal its national gemstone. Some of the finest and largest Australian opals ever seen include the multicolored precious opal gem called the Virgin Rainbow, from Coober Pedy, Big Ben, which was found in Lightning Ridge, the Light of the World and the Andamooka Desert Flame.
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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