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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: 39153120 pcs
thumb image of 6.4ct Oval Cabochon Multicolor Opal Doublet (ID: 391531)
6.40 ct Opal Doublet
6 x 4 mm
$ 107.58
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ID: 4491671 pcs
thumb image of 3ct Fancy Cabochon Multicolor Opal Doublet (ID: 449167)
3.03 ct Opal Doublet
15.6 x 10.7 mm
$ 44.21
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ID: 4619581 pcs
thumb image of 1.5ct Pear Cabochon Multicolor Opal Doublet (ID: 461958)
1.50 ct Opal Doublet
12.7 x 7.2 mm
$ 22.58
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ID: 3577871 pcs
thumb image of 6.9ct Fancy Cabochon Blue Opal Doublet (ID: 357787)
6.85 ct Opal Doublet
22.8 x 13.9 mm
$ 44.52
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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: 4618551 pcs
thumb image of 0.9ct Pear Cabochon Multicolor Opal Doublet (ID: 461855)
0.92 ct Opal Doublet
9.2 x 6.3 mm
$ 13.85
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ID: 4619591 pcs
thumb image of 0.9ct Pear Cabochon Multicolor Opal Doublet (ID: 461959)
0.87 ct Opal Doublet
9.9 x 5.9 mm
$ 13.09
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ID: 4468238 pcs
thumb image of 4.8ct Pear Cabochon Multicolor Opal Doublet (ID: 446823)
4.77 ct Opal Doublet
8.2 x 5.2 mm
$ 71.55
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ID: 3623314 pcs
thumb image of 2.5ct Pear Cabochon Multicolor Opal Doublet (ID: 362331)
2.52 ct Opal Doublet
8.1 x 5.1 mm
$ 46.04
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ID: 44694015 pcs
thumb image of 5.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446940)
5.55 ct Opal Doublet
6.2 x 4.2 mm
$ 83.25
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ID: 4468013 pcs
thumb image of 3.1ct Oval Cabochon Multicolor Opal Doublet (ID: 446801)
3.07 ct Opal Doublet
7.9 x 6 mm
$ 46.05
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ID: 4619511 pcs
thumb image of 0.7ct Pear Cabochon Multicolor Opal Doublet (ID: 461951)
0.70 ct Opal Doublet
8 x 5 mm
$ 10.54
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ID: 3579091 pcs
thumb image of 37.2ct Fancy Cabochon Blue Opal Doublet (ID: 357909)
37.15 ct Opal Doublet
42.3 x 27.5 mm
$ 241.48
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ID: 4468197 pcs
thumb image of 5.2ct Marquise Cabochon Multicolor Opal Doublet (ID: 446819)
5.19 ct Opal Doublet
10.2 x 5.1 mm
$ 77.85
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ID: 4469228 pcs
thumb image of 4.7ct Oval Cabochon Multicolor Opal Doublet (ID: 446922)
4.74 ct Opal Doublet
7.1 x 5.1 mm
$ 71.10
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ID: 3577801 pcs
thumb image of 7.3ct Fancy Cabochon Blue Opal Doublet (ID: 357780)
7.28 ct Opal Doublet
30.1 x 10.5 mm
$ 47.32
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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: 3915582 pcs
thumb image of 4.2ct Oval Cabochon Blue Opal Doublet (ID: 391558)
4.22 ct Opal Doublet
14 x 7.5 mm
$ 70.94
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ID: 4594251 pcs
thumb image of 9ct Pear Cabochon Multicolor Opal Doublet (ID: 459425)
8.99 ct Opal Doublet
23.3 x 17.1 mm
$ 131.16
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ID: 4469278 pcs
thumb image of 5.1ct Marquise Cabochon Blue Opal Doublet (ID: 446927)
5.07 ct Opal Doublet
10 x 4.9 mm
$ 76.05
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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)

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length x width x depth,
except for round stones which are;
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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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