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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (146): Opal Doublet Clear All
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Blue Opal Doublet Gem - 37.2ct Fancy Cabochon (ID: 357909)

Fancy Blue Opal Doublet

37.2ct
42.3 x 27.5 mm
$ 241.48
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1 pc
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Multicolor Opal Doublet Gem - 4.9ct Teardrop Cabochon (ID: 503229)

Fancy Multicolor Opal Doublet

4.9ct
20.3 x 12 mm
$ 131.54
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4 pcs
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Multicolor Opal Doublet Gem - 1ct Oval Cabochon (ID: 503210)

Oval Multicolor Opal Doublet

1.01 ct (total 4.03ctw)
8 x 6 mm
$ 107.96
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Multicolor Opal Doublet Gem - 1.7ct Fancy Cabochon (ID: 503198)

Fancy Multicolor Opal Doublet

1.7ct
14.3 x 6 mm
$ 44.47
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4 pcs
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Multicolor Opal Doublet Gem - 0.9ct Oval Cabochon (ID: 503291)

Oval Multicolor Opal Doublet

0.86 ct (total 3.43ctw)
8 x 6 mm
$ 91.89
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Multicolor Opal Doublet Gem - 2.6ct Round Cabochon (ID: 505377)

Round Multicolor Opal Doublet

2.6ct
11.2 mm
$ 69.09
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Multicolor Opal Doublet Gem - 1.4ct Baguette Cabochon (ID: 503475)

Baguette Multicolor Opal Doublet

1.4ct
14.3 x 5.2 mm
$ 29.68
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Multicolor Opal Doublet Gem - 4.7ct Oval Cabochon (ID: 503232)

Oval Multicolor Opal Doublet

4.7ct
25 x 7.2 mm
$ 125.38
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Multicolor Opal Doublet Gem - 8ct Fancy Cabochon (ID: 420620)

Fancy Multicolor Opal Doublet

8ct
19.2 x 14.1 mm
$ 127.84
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Multicolor Opal Doublet Gem - 4.3ct Teardrop Cabochon (ID: 503240)

Fancy Multicolor Opal Doublet

4.3ct
18.7 x 9.6 mm
$ 114.93
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2 pcs
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Blue Opal Doublet Gem - 2.8ct Oval Cabochon (ID: 391322)

Oval Blue Opal Doublet

2.75 ct (total 5.49ctw)
17.5 x 7.6 mm
$ 121.60
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2 pcs
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Blue Opal Doublet Gem - 7.8ct Fancy Cabochon (ID: 446934)

Fancy Blue Opal Doublet

7.84 ct (total 15.67ctw)
26.1 x 11 mm
$ 235.05
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12 pcs
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Multicolor Opal Doublet Gem - 0.6ct Oval Cabochon (ID: 503299)

Oval Multicolor Opal Doublet

0.59 ct (total 7.09ctw)
6.9 x 5 mm
$ 189.94
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Multicolor Opal Doublet Gem - 0.6ct Baguette Cabochon (ID: 503483)

Baguette Multicolor Opal Doublet

0.6ct
10.1 x 3.3 mm
$ 12.91
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Multicolor Opal Doublet Gem - 0.8ct Baguette Cabochon (ID: 503479)

Baguette Multicolor Opal Doublet

0.8ct
10 x 4.1 mm
$ 17.42
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Multicolor Opal Doublet Gem - 1ct Baguette Cabochon (ID: 503474)

Baguette Multicolor Opal Doublet

1ct
12.9 x 4.1 mm
$ 22.37
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8 pcs
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Multicolor Opal Doublet Gem - 0.6ct Oval Cabochon (ID: 503298)

Oval Multicolor Opal Doublet

0.60 ct (total 4.79ctw)
7.2 x 5.1 mm
$ 128.32
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20 pcs
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Multicolor Opal Doublet Gem - 0.4ct Oval Cabochon (ID: 391604)

Oval Multicolor Opal Doublet

0.37 ct (total 7.43ctw)
6.2 x 4.1 mm
$ 124.90
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Multicolor Opal Doublet Gem - 0.8ct Baguette Cabochon (ID: 503482)

Baguette Multicolor Opal Doublet

0.8ct
11.2 x 3.3 mm
$ 16.99
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8 pcs
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Multicolor Opal Doublet Gem - 0.6ct Oval Cabochon (ID: 503297)

Oval Multicolor Opal Doublet

0.58 ct (total 4.60ctw)
7.1 x 5.1 mm
$ 123.23
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Multicolor Opal Doublet Gem - 1ct Pear Cabochon (ID: 503560)

Pear Multicolor Opal Doublet

1ct
9.1 x 6.1 mm
$ 22.16
Item in Stock
1 2 3 4 5 6 7
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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Overall Rating -> 9 star ratings
Great selection. Love the many learning features like articles and gem information. Prices competitive for natural stones. I do miss not having a selection of lab-made stones, CZ’s, etc, which are useful when price and cost are factors.
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Overall Rating -> 10 star ratings
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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

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

Note: 1ct = 0.2g

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