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ID: 4468177 pcs
thumb image of 3.9ct Pear Cabochon Multicolor Opal Doublet (ID: 446817)
3.90ct Opal Doublet
8.14 x 5.12 x 1.85mm
USD 58.50
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ID: 4468741 pcs
thumb image of 2.7ct Oval Cabochon Multicolor Opal Doublet (ID: 446874)
2.74ct Opal Doublet
16.13 x 8.49 x 2.46mm
USD 41.10
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ID: 4468105 pcs
thumb image of 4ct Oval Cabochon Multicolor Opal Doublet (ID: 446810)
4.01ct Opal Doublet
8.07 x 5.93 x 1.97mm
USD 60.15
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ID: 4468862 pcs
thumb image of 1.8ct Marquise Cabochon Multicolor Opal Doublet (ID: 446886)
1.76ct Opal Doublet
12.22 x 6.00 x 1.91mm
USD 26.40
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ID: 4468281 pcs
thumb image of 2.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 446828)
2.35ct Opal Doublet
12.70 x 12.46 x 2.58mm
USD 35.25
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ID: 4468064 pcs
thumb image of 2.5ct Marquise Cabochon Multicolor Opal Doublet (ID: 446806)
2.47ct Opal Doublet
9.79 x 4.82 x 1.98mm
USD 37.05
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ID: 4469248 pcs
thumb image of 3.5ct Pear Cabochon Multicolor Opal Doublet (ID: 446924)
3.51ct Opal Doublet
7.01 x 4.97 x 1.76mm
USD 52.65
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ID: 4468331 pcs
thumb image of 3ct Marquise Cabochon Multicolor Opal Doublet (ID: 446833)
2.97ct Opal Doublet
20.00 x 8.32 x 2.45mm
USD 44.55
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ID: 4469361 pcs
thumb image of 4.1ct Fancy Cabochon Multicolor Opal Doublet (ID: 446936)
4.08ct Opal Doublet
19.58 x 11.06 x 2.67mm
USD 61.20
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ID: 4468043 pcs
thumb image of 3.3ct Oval Cabochon Multicolor Opal Doublet (ID: 446804)
3.30ct Opal Doublet
7.97 x 6.11 x 2.31mm
USD 49.50
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ID: 4469332 pcs
thumb image of 6.6ct Marquise Cabochon Multicolor Opal Doublet (ID: 446933)
6.59ct Opal Doublet
24.50 x 7.40 x 2.36mm
USD 98.85
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ID: 4207131 pcs
thumb image of 4.4ct Fancy Cabochon Multicolor Opal Doublet (ID: 420713)
4.43ct Opal Doublet
16.04 x 10.04 x 2.61mm
USD 70.88
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ID: 4468392 pcs
thumb image of 1.7ct Oval Cabochon Multicolor Opal Doublet (ID: 446839)
1.73ct Opal Doublet
8.22 x 6.08 x 2.39mm
USD 25.95
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ID: 3577861 pcs
thumb image of 5.5ct Fancy Cabochon Multicolor Opal Doublet (ID: 357786)
5.53ct Opal Doublet
17.04 x 13.23 x 3.26mm
USD 35.94
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ID: 4468238 pcs
thumb image of 4.8ct Pear Cabochon Multicolor Opal Doublet (ID: 446823)
4.77ct Opal Doublet
8.15 x 5.15 x 1.82mm
USD 71.55
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ID: 4469371 pcs
thumb image of 3.7ct Fancy Cabochon Multicolor Opal Doublet (ID: 446937)
3.65ct Opal Doublet
15.34 x 9.90 x 2.71mm
USD 54.75
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ID: 4468301 pcs
thumb image of 2.7ct Fancy Cabochon Multicolor Opal Doublet (ID: 446830)
2.67ct Opal Doublet
17.10 x 9.92 x 2.26mm
USD 40.05
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ID: 2940544 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Opal Doublet (ID: 294054)
2.36ct Opal Doublet
7.12 x 4.90 x 1.60mm
USD 70.80
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ID: 4468561 pcs
thumb image of 4.8ct Fancy Cabochon Multicolor Opal Doublet (ID: 446856)
4.82ct Opal Doublet
22.64 x 11.06 x 2.53mm
USD 72.30
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ID: 4468228 pcs
thumb image of 3.3ct Pear Cabochon Multicolor Opal Doublet (ID: 446822)
3.29ct Opal Doublet
7.01 x 4.94 x 1.85mm
USD 49.35
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ID: 2496652 pcs
thumb image of 1.4ct Oval Cabochon Multicolor Opal Doublet (ID: 249665)
1.44ct Opal Doublet
7.96 x 6.03 x 1.60mm
USD 36.23
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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)

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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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