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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: 3579721 pcs
6.16ct Opal Doublet
17.51mm x 13.89mm x 3.36mm
USD 40.04
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ID: 3577861 pcs
5.53ct Opal Doublet
17.04mm x 13.23mm x 3.26mm
USD 35.94
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ID: 3156044 pcs
3.09ctw Opal Doublet
8.04mm x 6.00mm x 1.99mm
USD 77.25
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ID: 4206551 pcs
2.89ct Opal Doublet
13.75mm x 9.12mm x 2.58mm
USD 46.24
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ID: 4206501 pcs
2.94ct Opal Doublet
13.23mm x 10.92mm x 2.40mm
USD 47.04
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ID: 3579091 pcs
37.15ct Opal Doublet
42.33mm x 27.50mm x 4.50mm
USD 241.48
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ID: 3913222 pcs
5.49ctw Opal Doublet
17.53mm x 7.56mm x 2.55mm
USD 121.60
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ID: 3577801 pcs
7.28ct Opal Doublet
30.05mm x 10.52mm x 3.15mm
USD 47.32
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ID: 4206111 pcs
8.39ct Opal Doublet
21.52mm x 15.45mm x 2.60mm
USD 134.24
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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: 2939984 pcs
2.30ctw Opal Doublet
6.92mm x 4.97mm x 1.80mm
USD 69.00
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ID: 3579151 pcs
11.42ct Opal Doublet
27.91mm x 14.55mm x 3.57mm
USD 74.23
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ID: 3579161 pcs
9.11ct Opal Doublet
24.38mm x 12.36mm x 3.49mm
USD 59.22
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ID: 20132516 pcs
11.31ctw Opal Doublet
8.07mm x 6.03mm x 1.43mm
USD 50.90
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ID: 3579701 pcs
3.88ct Opal Doublet
14.67mm x 13.00mm x 2.80mm
USD 25.22
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ID: 39160420 pcs
7.43ctw Opal Doublet
6.18mm x 4.09mm x 1.75mm
USD 124.90
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ID: 4207171 pcs
3.26ct Opal Doublet
16.17mm x 9.74mm x 2.35mm
USD 52.16
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ID: 4206191 pcs
9.40ct Opal Doublet
26.24mm x 13.28mm x 2.82mm
USD 150.40
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ID: 20124216 pcs
12.07ctw Opal Doublet
8.05mm x 6.04mm x 1.64mm
USD 54.32
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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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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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