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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (218): Chalcedony Chalcedony Clear All
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ID: 4748201 pcs
thumb image of 18ct Oval Cabochon Lavender Blue Chalcedony (ID: 474820)
17.95 ct Chalcedony
19.3 x 17.6 mm
$ 21.54
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ID: 4585621 pcs
thumb image of 29.2ct Oval Cabochon Lavender Blue Chalcedony (ID: 458562)
29.21 ct Chalcedony
21.6 x 18.2 mm
$ 29.21
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ID: 4745201 pcs
thumb image of 10.3ct Oval Cabochon Lavender Blue Chalcedony (ID: 474520)
10.29 ct Chalcedony
15.2 x 12.6 mm
$ 12.35
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ID: 3127051 pcs
thumb image of 4.1ct Heart Cabochon Lavender Blue Chalcedony (ID: 312705)
4.07 ct Chalcedony
11.1 x 10.8 mm
$ 10.19
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ID: 3031641 pcs
thumb image of 6.4ct Pear Cabochon Lavender Blue Chalcedony (ID: 303164)
6.35 ct Chalcedony
13 x 11 mm
$ 12.70
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ID: 4694151 pcs
thumb image of 24.9ct Pear Cabochon Lavender Blue Chalcedony (ID: 469415)
24.87 ct Chalcedony
23.3 x 16.9 mm
$ 37.31
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ID: 4741501 pcs
thumb image of 24.2ct Pear Cabochon Lavender Blue Chalcedony (ID: 474150)
24.15 ct Chalcedony
21.5 x 18.7 mm
$ 28.98
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ID: 4745181 pcs
thumb image of 10.7ct Pear Cabochon Lavender Blue Chalcedony (ID: 474518)
10.70 ct Chalcedony
19.3 x 14.7 mm
$ 12.84
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ID: 4585701 pcs
thumb image of 28.6ct Oval Cabochon Lavender Blue Chalcedony (ID: 458570)
28.62 ct Chalcedony
20 x 18 mm
$ 28.62
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ID: 4699812 pcs
thumb image of 17.6ct Drilled Sphere Lavender Blue Chalcedony (ID: 469981)
17.63 ct Chalcedony
10.9 mm
$ 12.87
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ID: 4698331 pcs
thumb image of 32.7ct Oval Cabochon Lavender Blue Chalcedony (ID: 469833)
32.72 ct Chalcedony
24 x 19.7 mm
$ 49.08
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ID: 4586621 pcs
thumb image of 28.5ct Oval Cabochon Lavender Blue Chalcedony (ID: 458662)
28.46 ct Chalcedony
21.5 x 18.4 mm
$ 28.46
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ID: 4748151 pcs
thumb image of 11.1ct Pear Cabochon Lavender Blue Chalcedony (ID: 474815)
11.07 ct Chalcedony
20.2 x 14.7 mm
$ 13.28
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ID: 4694171 pcs
thumb image of 18.9ct Oval Cabochon Lavender Blue Chalcedony (ID: 469417)
18.89 ct Chalcedony
19.2 x 16.5 mm
$ 28.34
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ID: 4739801 pcs
thumb image of 11.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 473980)
11.30 ct Chalcedony
17.4 x 13 mm
$ 13.56
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ID: 4698741 pcs
thumb image of 30.6ct Oval Cabochon Lavender Blue Chalcedony (ID: 469874)
30.57 ct Chalcedony
25.6 x 17.6 mm
$ 45.86
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ID: 4584871 pcs
thumb image of 28.1ct Oval Cabochon Lavender Blue Chalcedony (ID: 458487)
28.07 ct Chalcedony
19.7 x 17.9 mm
$ 28.07
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ID: 4588334 pcs
thumb image of 6.8ct Heart Cabochon Lavender Blue Chalcedony (ID: 458833)
6.80 ct Chalcedony
7.7 x 7.9 mm
$ 13.60
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ID: 2740702 pcs
thumb image of 13.3ct Heart Cabochon Lavender Blue Chalcedony (ID: 274070)
13.27 ct Chalcedony
12.2 x 12.1 mm
$ 50.43
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ID: 4751731 pcs
thumb image of 23.1ct Pear Cabochon Lavender Blue Chalcedony (ID: 475173)
23.13 ct Chalcedony
27.2 x 16.5 mm
$ 27.76
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ID: 3251741 pcs
thumb image of 5.8ct Pear Cabochon Lavender Blue Chalcedony (ID: 325174)
5.82 ct Chalcedony
13.2 x 11.2 mm
$ 11.64
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Chalcedony

Chalcedony, or calcedony, is a fine-grained variety of the silica mineral quartz. It has a waxy luster and appears in a great variety of colors - usually blue-white, buff, light tan, gray, yellow or brown. Chalcedony is named after the ancient seaport of Chalcedon (Kadikoy, Turkey). Archaeologists have dug up Babylonian and Assyrian chalcedony cylinder-seals dating from 500 BC. Common forms of chalcedony include agate, bloodstone, jasper, and onyx.

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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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