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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (179): Chalcedony Chalcedony Clear All
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ID: 4698281 pcs
thumb image of 45.8ct Oval Cabochon Lavender Blue Chalcedony (ID: 469828)
45.76 ct Chalcedony
28 x 24 mm
$ 68.64
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ID: 4698291 pcs
thumb image of 37.7ct Oval Cabochon Lavender Blue Chalcedony (ID: 469829)
37.67 ct Chalcedony
25.3 x 21.8 mm
$ 56.51
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ID: 4694121 pcs
thumb image of 27.1ct Oval Cabochon Lavender Blue Chalcedony (ID: 469412)
27.05 ct Chalcedony
23.2 x 17.5 mm
$ 40.58
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ID: 3239841 pcs
thumb image of 5.1ct Pear Cabochon Lavender Blue Chalcedony (ID: 323984)
5.08 ct Chalcedony
12.1 x 9.9 mm
$ 10.16
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ID: 4697801 pcs
thumb image of 29.2ct Pear Cabochon Lavender Blue Chalcedony (ID: 469780)
29.22 ct Chalcedony
25.2 x 17.5 mm
$ 43.83
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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: 3432811 pcs
thumb image of 4.1ct Heart Cabochon Lavender Blue Chalcedony (ID: 343281)
4.10 ct Chalcedony
11.1 x 11 mm
$ 10.25
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ID: 4698361 pcs
thumb image of 34.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 469836)
34.26 ct Chalcedony
27.9 x 22.7 mm
$ 51.39
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ID: 4697861 pcs
thumb image of 26.1ct Cushion Cabochon Lavender Blue Chalcedony (ID: 469786)
26.05 ct Chalcedony
24.1 x 16.5 mm
$ 39.08
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ID: 4587421 pcs
thumb image of 10.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 458742)
10.28 ct Chalcedony
18.8 x 12.5 mm
$ 10.28
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ID: 3264401 pcs
thumb image of 3.5ct Pear Cabochon Lavender Blue Chalcedony (ID: 326440)
3.53 ct Chalcedony
11 x 9.7 mm
$ 7.06
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ID: 3262711 pcs
thumb image of 5.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 326271)
5.25 ct Chalcedony
13.4 x 10.8 mm
$ 10.50
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ID: 4696391 pcs
thumb image of 38.4ct Oval Cabochon Lavender Blue Chalcedony (ID: 469639)
38.42 ct Chalcedony
25.5 x 20.1 mm
$ 57.63
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ID: 4572361 pcs
thumb image of 37.8ct Oval Cabochon Lavender Blue Chalcedony (ID: 457236)
37.81 ct Chalcedony
24.1 x 19.6 mm
$ 37.81
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ID: 3034552 pcs
thumb image of 5.3ct Heart Cabochon Lavender Blue Chalcedony (ID: 303455)
5.32 ct Chalcedony
9.1 x 9.1 mm
$ 10.64
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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: 4584911 pcs
thumb image of 10.7ct Pear Cabochon Lavender Blue Chalcedony (ID: 458491)
10.67 ct Chalcedony
18.5 x 14.3 mm
$ 10.67
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ID: 3127041 pcs
thumb image of 3.2ct Heart Cabochon Lavender Blue Chalcedony (ID: 312704)
3.16 ct Chalcedony
10 x 9.9 mm
$ 7.90
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ID: 3243611 pcs
thumb image of 2.6ct Heart Cabochon Lavender Blue Chalcedony (ID: 324361)
2.61 ct Chalcedony
9.1 x 8.9 mm
$ 6.55
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ID: 4697791 pcs
thumb image of 24.7ct Oval Cabochon Lavender Blue Chalcedony (ID: 469779)
24.69 ct Chalcedony
20.3 x 16 mm
$ 37.04
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ID: 4569731 pcs
thumb image of 10.7ct Round Cabochon Lavender Blue Chalcedony (ID: 456973)
10.72 ct Chalcedony
14.1 mm
$ 10.72
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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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