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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: 4469258 pcs
thumb image of 4.1ct Pear Cabochon Multicolor Opal Doublet (ID: 446925)
4.09 ct Opal Doublet
7.1 x 5 mm
$ 61.35
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ID: 4468136 pcs
thumb image of 4.6ct Marquise Cabochon Multicolor Opal Doublet (ID: 446813)
4.59 ct Opal Doublet
10.2 x 5.1 mm
$ 68.85
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ID: 4468872 pcs
thumb image of 4.4ct Oval Cabochon Blue Opal Doublet (ID: 446887)
4.41 ct Opal Doublet
17.8 x 6.5 mm
$ 66.15
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ID: 4495171 pcs
thumb image of 2.3ct Oval Cabochon Multicolor Opal Doublet (ID: 449517)
2.27 ct Opal Doublet
14 x 8.2 mm
$ 33.12
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ID: 3636764 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal Doublet (ID: 363676)
2.02 ct Opal Doublet
7 x 5.1 mm
$ 38.52
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ID: 4468791 pcs
thumb image of 2.3ct Fancy Cabochon Multicolor Opal Doublet (ID: 446879)
2.33 ct Opal Doublet
14.3 x 10.5 mm
$ 34.95
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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: 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: 4468095 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Opal Doublet (ID: 446809)
2.40 ct Opal Doublet
6.8 x 4.9 mm
$ 36.00
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ID: 4491381 pcs
thumb image of 7ct Pear Cabochon Multicolor Opal Doublet (ID: 449138)
7.03 ct Opal Doublet
23.9 x 12.2 mm
$ 102.57
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ID: 4491601 pcs
thumb image of 3.4ct Pear Cabochon Multicolor Opal Doublet (ID: 449160)
3.36 ct Opal Doublet
15.2 x 10.1 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: 3913422 pcs
thumb image of 6.7ct Pear Cabochon Multicolor Opal Doublet (ID: 391342)
6.68 ct Opal Doublet
17.4 x 8.6 mm
$ 112.29
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ID: 3156044 pcs
thumb image of 3.1ct Oval Cabochon Multicolor Opal Doublet (ID: 315604)
3.09 ct Opal Doublet
8 x 6 mm
$ 77.25
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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: 3625374 pcs
thumb image of 2ct Pear Cabochon Multicolor Opal Doublet (ID: 362537)
1.99 ct Opal Doublet
7.3 x 5 mm
$ 36.36
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ID: 4469361 pcs
thumb image of 4.1ct Fancy Cabochon Multicolor Opal Doublet (ID: 446936)
4.08 ct Opal Doublet
19.6 x 11.1 mm
$ 61.20
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ID: 4493111 pcs
thumb image of 1.7ct Fancy Cabochon Multicolor Opal Doublet (ID: 449311)
1.69 ct Opal Doublet
10.7 x 8.7 mm
$ 24.66
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ID: 44694115 pcs
thumb image of 4.6ct Pear Cabochon Multicolor Opal Doublet (ID: 446941)
4.57 ct Opal Doublet
6.1 x 4.1 mm
$ 68.55
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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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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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