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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: 4469042 pcs
thumb image of 1ct Pear Cabochon Multicolor Opal Doublet (ID: 446904)
0.99 ct Opal Doublet
7.1 x 5.2 mm
$ 14.85
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ID: 4492321 pcs
thumb image of 1.2ct Pear Cabochon Multicolor Opal Doublet (ID: 449232)
1.20 ct Opal Doublet
9.9 x 6.8 mm
$ 17.51
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ID: 4469082 pcs
thumb image of 1.4ct Marquise Cabochon Blue Opal Doublet (ID: 446908)
1.41 ct Opal Doublet
10.1 x 5.2 mm
$ 21.15
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ID: 4206211 pcs
thumb image of 7.9ct Fancy Cabochon Multicolor Opal Doublet (ID: 420621)
7.85 ct Opal Doublet
21.7 x 14.2 mm
$ 125.60
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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: 4468392 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Opal Doublet (ID: 446839)
1.73 ct Opal Doublet
8.2 x 6.1 mm
$ 25.95
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ID: 4469022 pcs
thumb image of 1.1ct Pear Cabochon Multicolor Opal Doublet (ID: 446902)
1.08 ct Opal Doublet
7.9 x 5 mm
$ 16.20
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ID: 4468642 pcs
thumb image of 1.8ct Pear Cabochon Multicolor Opal Doublet (ID: 446864)
1.78 ct Opal Doublet
9.2 x 6.2 mm
$ 26.70
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ID: 4468862 pcs
thumb image of 1.8ct Marquise Cabochon Multicolor Opal Doublet (ID: 446886)
1.76 ct Opal Doublet
12.2 x 6 mm
$ 26.40
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ID: 4468702 pcs
thumb image of 1.2ct Oval Cabochon Multicolor Opal Doublet (ID: 446870)
1.21 ct Opal Doublet
7.1 x 5.2 mm
$ 18.15
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ID: 44691220 pcs
thumb image of 7.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446912)
7.56 ct Opal Doublet
6.1 x 4.1 mm
$ 113.40
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ID: 4491821 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal Doublet (ID: 449182)
1.97 ct Opal Doublet
12 x 8.2 mm
$ 28.74
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ID: 4469352 pcs
thumb image of 9.8ct Oval Cabochon Multicolor Opal Doublet (ID: 446935)
9.81 ct Opal Doublet
18.4 x 10.9 mm
$ 147.15
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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: 2939912 pcs
thumb image of 1ct Oval Cabochon Multicolor Opal Doublet (ID: 293991)
1.03 ct Opal Doublet
6.9 x 4.8 mm
$ 30.90
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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: 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: 44935320 pcs
thumb image of 7ct Oval Cabochon Multicolor Opal Doublet (ID: 449353)
6.95 ct Opal Doublet
6.1 x 4.1 mm
$ 101.40
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ID: 4492534 pcs
thumb image of 1.9ct Round Cabochon Multicolor Opal Doublet (ID: 449253)
1.93 ct Opal Doublet
6.2 mm
$ 28.16
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ID: 4492584 pcs
thumb image of 2.3ct Oval Cabochon Multicolor Opal Doublet (ID: 449258)
2.30 ct Opal Doublet
7.1 x 5.1 mm
$ 33.56
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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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