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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: 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: 4468412 pcs
thumb image of 1.9ct Oval Cabochon Multicolor Opal Doublet (ID: 446841)
1.91 ct Opal Doublet
8.4 x 6.2 mm
$ 28.65
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ID: 4491611 pcs
thumb image of 3.2ct Pear Cabochon Multicolor Opal Doublet (ID: 449161)
3.19 ct Opal Doublet
16.5 x 11 mm
$ 46.54
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ID: 4468622 pcs
thumb image of 1.2ct Oval Cabochon Multicolor Opal Doublet (ID: 446862)
1.21 ct Opal Doublet
7.2 x 5.1 mm
$ 18.15
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ID: 4207161 pcs
thumb image of 3.7ct Oval Cabochon Blue Opal Doublet (ID: 420716)
3.66 ct Opal Doublet
14.6 x 9.3 mm
$ 58.56
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ID: 4468761 pcs
thumb image of 2.1ct Fancy Cabochon Multicolor Opal Doublet (ID: 446876)
2.11 ct Opal Doublet
14.5 x 8.1 mm
$ 31.65
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ID: 4207081 pcs
thumb image of 3ct Fancy Cabochon Multicolor Opal Doublet (ID: 420708)
2.97 ct Opal Doublet
16.9 x 9.2 mm
$ 47.52
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ID: 4468043 pcs
thumb image of 3.3ct Oval Cabochon Multicolor Opal Doublet (ID: 446804)
3.30 ct Opal Doublet
8 x 6.1 mm
$ 49.50
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ID: 4206221 pcs
thumb image of 12.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420622)
12.44 ct Opal Doublet
41.5 x 9 mm
$ 199.04
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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: 4491591 pcs
thumb image of 3.9ct Pear Cabochon Multicolor Opal Doublet (ID: 449159)
3.94 ct Opal Doublet
17.4 x 10.9 mm
$ 57.48
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ID: 4492161 pcs
thumb image of 1ct Fancy Cabochon Multicolor Opal Doublet (ID: 449216)
0.95 ct Opal Doublet
12.3 x 5.6 mm
$ 13.86
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ID: 4467941 pcs
thumb image of 2.7ct Baguette Cabochon Multicolor Opal Doublet (ID: 446794)
2.71 ct Opal Doublet
16.6 x 8.1 mm
$ 40.65
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ID: 4493311 pcs
thumb image of 2.2ct Pear Cabochon Multicolor Opal Doublet (ID: 449331)
2.17 ct Opal Doublet
14.4 x 9.2 mm
$ 31.66
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ID: 4469299 pcs
thumb image of 5.2ct Oval Cabochon Multicolor Opal Doublet (ID: 446929)
5.18 ct Opal Doublet
7.2 x 5.2 mm
$ 77.70
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ID: 4492071 pcs
thumb image of 1.2ct Oval Cabochon Multicolor Opal Doublet (ID: 449207)
1.23 ct Opal Doublet
11.2 x 7.2 mm
$ 17.95
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ID: 4468472 pcs
thumb image of 1.4ct Oval Cabochon Multicolor Opal Doublet (ID: 446847)
1.42 ct Opal Doublet
8 x 6.1 mm
$ 21.30
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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: 4206191 pcs
thumb image of 9.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420619)
9.40 ct Opal Doublet
26.2 x 13.3 mm
$ 150.40
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ID: 4469218 pcs
thumb image of 4.3ct Pear Cabochon Multicolor Opal Doublet (ID: 446921)
4.30 ct Opal Doublet
7.9 x 5.1 mm
$ 64.50
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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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