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ID: 4469052 pcs
thumb image of 0.8ct Pear Cabochon Multicolor Opal Doublet (ID: 446905)
0.83 ct Opal Doublet
6.9 x 5 mm
$ 12.45
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ID: 4492614 pcs
thumb image of 2.2ct Oval Cabochon Multicolor Opal Doublet (ID: 449261)
2.24 ct Opal Doublet
7.2 x 5.1 mm
$ 32.68
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ID: 3579111 pcs
thumb image of 16.6ct Fancy Cabochon Blue Opal Doublet (ID: 357911)
16.57 ct Opal Doublet
27.4 x 20.5 mm
$ 107.70
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ID: 4493341 pcs
thumb image of 2.1ct Oval Cabochon Multicolor Opal Doublet (ID: 449334)
2.07 ct Opal Doublet
12.9 x 7.7 mm
$ 30.20
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ID: 4468751 pcs
thumb image of 2.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 446875)
2.40 ct Opal Doublet
15.1 x 9.6 mm
$ 36.00
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ID: 4491401 pcs
thumb image of 14.4ct Pear Cabochon Multicolor Opal Doublet (ID: 449140)
14.41 ct Opal Doublet
25.1 x 19.3 mm
$ 210.24
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ID: 4491581 pcs
thumb image of 3.5ct Pear Cabochon Multicolor Opal Doublet (ID: 449158)
3.50 ct Opal Doublet
15.1 x 9.6 mm
$ 51.06
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ID: 4492371 pcs
thumb image of 1.6ct Oval Cabochon Multicolor Opal Doublet (ID: 449237)
1.62 ct Opal Doublet
9.1 x 7.2 mm
$ 23.64
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ID: 4491371 pcs
thumb image of 9ct Pear Cabochon Multicolor Opal Doublet (ID: 449137)
8.99 ct Opal Doublet
23.3 x 17.1 mm
$ 131.16
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ID: 4491621 pcs
thumb image of 3.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 449162)
3.40 ct Opal Doublet
19 x 10.8 mm
$ 49.61
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ID: 4206541 pcs
thumb image of 2.3ct Fancy Cabochon Multicolor Opal Doublet (ID: 420654)
2.33 ct Opal Doublet
12.7 x 8.9 mm
$ 37.28
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ID: 4207841 pcs
thumb image of 4.6ct Fancy Cabochon Multicolor Opal Doublet (ID: 420784)
4.59 ct Opal Doublet
16.9 x 10.9 mm
$ 73.44
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ID: 4492791 pcs
thumb image of 4.4ct Fancy Cabochon Blue Opal Doublet (ID: 449279)
4.36 ct Opal Doublet
19.1 x 7.9 mm
$ 63.61
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ID: 4491831 pcs
thumb image of 3.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 449183)
3.36 ct Opal Doublet
20.1 x 7.5 mm
$ 49.02
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ID: 4469381 pcs
thumb image of 3.6ct Fancy Cabochon Multicolor Opal Doublet (ID: 446938)
3.59 ct Opal Doublet
17.2 x 11.3 mm
$ 53.85
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ID: 4492101 pcs
thumb image of 0.9ct Marquise Cabochon Multicolor Opal Doublet (ID: 449210)
0.90 ct Opal Doublet
9.8 x 5.1 mm
$ 13.13
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ID: 4468422 pcs
thumb image of 1.5ct Oval Cabochon Multicolor Opal Doublet (ID: 446842)
1.53 ct Opal Doublet
8.3 x 6.2 mm
$ 22.95
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ID: 3577841 pcs
thumb image of 9.7ct Fancy Cabochon Blue Opal Doublet (ID: 357784)
9.72 ct Opal Doublet
20.7 x 17.3 mm
$ 63.18
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ID: 4468301 pcs
thumb image of 2.7ct Fancy Cabochon Multicolor Opal Doublet (ID: 446830)
2.67 ct Opal Doublet
17.1 x 9.9 mm
$ 40.05
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ID: 4492554 pcs
thumb image of 2.2ct Pear Cabochon Multicolor Opal Doublet (ID: 449255)
2.22 ct Opal Doublet
7.9 x 5.2 mm
$ 32.39
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ID: 44691920 pcs
thumb image of 7.9ct Oval Cabochon Multicolor Opal Doublet (ID: 446919)
7.93 ct Opal Doublet
6.1 x 4.1 mm
$ 118.95
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Opal Doublet
More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to insure their health and longevity.

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.

Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs Scale. Despite its frequent use in rings, opal is a poor choice for a ring stone; it is much better suited to earrings, pins, and pendants.

Major suppliers include Australia, Brazil, Mexico, and the US. Values are normally determined by the presence and nature of color flashes.

An opal doublet consists of a slice of opal glued to a black backing, designed to imitate the appearance of a solid black opal. Adhering the slice of opal to a black backing causes the colour to become much darker and more vibrant. Opal doublets are highly regarded as an inexpensive alternative to solid opals which are very expensive in larger sizes.
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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

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Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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