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ID: 4206221 pcs
12.44ct Opal Doublet
41.45mm x 8.99mm x 3.37mm
USD 199.04
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ID: 4206561 pcs
1.83ct Opal Doublet
11.87mm x 8.05mm x 2.39mm
USD 29.28
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ID: 3630421 pcs
1.41ct Opal Doublet
8.57mm x 2.49mm
USD 26.21
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ID: 3913412 pcs
3.53ctw Opal Doublet
12.92mm x 8.17mm x 2.24mm
USD 59.34
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ID: 4206151 pcs
5.90ct Opal Doublet
21.75mm x 14.01mm x 2.46mm
USD 94.40
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ID: 3811711 pcs
3.16ct Opal Doublet
16.53mm x 10.59mm x 2.83mm
USD 57.95
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ID: 2939912 pcs
1.03ctw Opal Doublet
6.90mm x 4.75mm x 1.76mm
USD 30.90
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ID: 3624054 pcs
2.08ctw Opal Doublet
7.99mm x 5.08mm x 1.85mm
USD 38.00
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ID: 3623314 pcs
2.52ctw Opal Doublet
8.09mm x 5.10mm x 2.00mm
USD 46.04
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ID: 4207081 pcs
2.97ct Opal Doublet
16.92mm x 9.16mm x 2.50mm
USD 47.52
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ID: 35309916 pcs
11.59ctw Opal Doublet
8.06mm x 6.05mm x 1.69mm
USD 52.16
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ID: 4206201 pcs
7.99ct Opal Doublet
19.21mm x 14.10mm x 2.85mm
USD 127.84
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ID: 3915922 pcs
9.53ctw Opal Doublet
21.91mm x 9.72mm x 2.47mm
USD 211.09
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ID: 4206541 pcs
2.33ct Opal Doublet
12.74mm x 8.94mm x 2.26mm
USD 37.28
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ID: 2940484 pcs
1.98ctw Opal Doublet
6.99mm x 5.16mm x 1.79mm
USD 59.40
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ID: 3625244 pcs
1.76ctw Opal Doublet
7.88mm x 5.06mm x 1.67mm
USD 32.16
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ID: 2496915 pcs
3.64ctw Opal Doublet
7.93mm x 6.02mm x 1.56mm
USD 16.38
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ID: 4004014 pcs
1.85ctw Opal Doublet
7.07mm x 4.88mm x 1.82mm
USD 33.80
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ID: 4207871 pcs
4.18ct Opal Doublet
17.41mm x 12.07mm x 2.38mm
USD 66.88
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ID: 3913422 pcs
6.68ctw Opal Doublet
17.42mm x 8.63mm x 2.92mm
USD 112.29
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ID: 2940234 pcs
1.74ctw Opal Doublet
7.14mm x 5.13mm x 1.60mm
USD 52.20
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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

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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