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You Selected (201): Chalcedony Chalcedony Clear All
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ID: 4698311 pcs
thumb image of 81.4ct Oval Cabochon Lavender Blue Chalcedony (ID: 469831)
81.39 ct Chalcedony
34.1 x 26.4 mm
$ 122.09
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ID: 4698701 pcs
thumb image of 55.8ct Pear Cabochon Lavender Blue Chalcedony (ID: 469870)
55.84 ct Chalcedony
31.4 x 22.2 mm
$ 83.76
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ID: 4739841 pcs
thumb image of 5.4ct Pear Cabochon Lavender Blue Chalcedony (ID: 473984)
5.35 ct Chalcedony
15.4 x 10.4 mm
$ 6.42
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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: 4696431 pcs
thumb image of 45.9ct Oval Cabochon Lavender Blue Chalcedony (ID: 469643)
45.91 ct Chalcedony
26.3 x 22.2 mm
$ 68.87
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ID: 3428551 pcs
thumb image of 3.4ct Heart Cabochon Lavender Blue Chalcedony (ID: 342855)
3.42 ct Chalcedony
10 x 9.9 mm
$ 6.84
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ID: 4696461 pcs
thumb image of 41.4ct Pear Cabochon Lavender Blue Chalcedony (ID: 469646)
41.42 ct Chalcedony
30.9 x 20.4 mm
$ 62.13
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ID: 4696411 pcs
thumb image of 39.5ct Oval Cabochon Lavender Blue Chalcedony (ID: 469641)
39.52 ct Chalcedony
24.9 x 20 mm
$ 59.28
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ID: 4698711 pcs
thumb image of 39.2ct Oval Cabochon Lavender Blue Chalcedony (ID: 469871)
39.17 ct Chalcedony
26.4 x 21.2 mm
$ 58.76
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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: 4698721 pcs
thumb image of 37.9ct Oval Cabochon Lavender Blue Chalcedony (ID: 469872)
37.91 ct Chalcedony
25.1 x 21.4 mm
$ 56.87
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ID: 4587391 pcs
thumb image of 7.9ct Pear Cabochon Lavender Blue Chalcedony (ID: 458739)
7.85 ct Chalcedony
17.2 x 10.5 mm
$ 7.85
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ID: 3034492 pcs
thumb image of 3.7ct Heart Cabochon Lavender Blue Chalcedony (ID: 303449)
3.65 ct Chalcedony
8.2 x 7.9 mm
$ 7.30
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ID: 4696381 pcs
thumb image of 36.7ct Oval Cabochon Lavender Blue Chalcedony (ID: 469638)
36.74 ct Chalcedony
20.5 x 19.3 mm
$ 55.11
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ID: 4697901 pcs
thumb image of 36.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 469790)
36.25 ct Chalcedony
29.2 x 23.1 mm
$ 54.38
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ID: 3034462 pcs
thumb image of 4.1ct Heart Cabochon Lavender Blue Chalcedony (ID: 303446)
4.08 ct Chalcedony
8.1 x 7.8 mm
$ 8.16
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ID: 3344472 pcs
thumb image of 4.5ct Heart Cabochon Lavender Blue Chalcedony (ID: 334447)
4.45 ct Chalcedony
8.9 x 8.8 mm
$ 7.16
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ID: 3242611 pcs
thumb image of 4.2ct Heart Cabochon Lavender Blue Chalcedony (ID: 324261)
4.16 ct Chalcedony
11.1 x 11.1 mm
$ 8.32
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ID: 3344462 pcs
thumb image of 5.3ct Heart Cabochon Lavender Blue Chalcedony (ID: 334446)
5.33 ct Chalcedony
9 x 9 mm
$ 8.58
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ID: 3239561 pcs
thumb image of 4.3ct Pear Cabochon Lavender Blue Chalcedony (ID: 323956)
4.31 ct Chalcedony
11.2 x 9.2 mm
$ 8.62
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ID: 4584951 pcs
thumb image of 8.7ct Pear Cabochon Lavender Blue Chalcedony (ID: 458495)
8.69 ct Chalcedony
16.7 x 13.1 mm
$ 8.69
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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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