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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (190): Obsidian Obsidian, Snowflake Obsidian Clear All
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ID: 4337231 pcs
18.42ct Obsidian
28.41mm x 16.30mm x 6.08mm
USD 18.42
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ID: 3626241 pcs
11.16ct Obsidian
27.91mm x 11.31mm x 6.27mm
USD 33.48
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ID: 4336241 pcs
40.38ct Obsidian
33.97mm x 24.01mm x 7.95mm
USD 40.38
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ID: 4336181 pcs
28.57ct Obsidian
31.96mm x 23.60mm x 5.26mm
USD 28.57
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ID: 4338351 pcs
12.89ct Obsidian
25.65mm x 14.16mm x 4.35mm
USD 12.89
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ID: 4341051 pcs
28.44ct Obsidian
31.72mm x 21.39mm x 6.05mm
USD 28.44
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ID: 4336661 pcs
21.67ct Obsidian
29.40mm x 17.71mm x 6.21mm
USD 21.67
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ID: 4341001 pcs
27.02ct Obsidian
27.22mm x 20.51mm x 6.44mm
USD 27.02
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ID: 4336191 pcs
42.84ct Obsidian
33.34mm x 22.83mm x 7.62mm
USD 42.84
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ID: 4336641 pcs
20.41ct Obsidian
25.57mm x 17.40mm x 5.88mm
USD 20.41
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ID: 3914211 pcs
11.73ct Obsidian
28.65mm x 16.43mm x 3.71mm
USD 35.19
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ID: 4339361 pcs
17.56ct Obsidian
19.86mm x 19.73mm x 6.17mm
USD 17.56
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ID: 4335691 pcs
7.74ct Obsidian
18.68mm x 13.36mm x 5.25mm
USD 7.74
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ID: 4339301 pcs
20.94ct Obsidian
30.33mm x 16.06mm x 6.50mm
USD 20.94
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ID: 3914911 pcs
31.63ct Obsidian
37.19mm x 25.37mm x 4.93mm
USD 94.89
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ID: 4339641 pcs
35.49ct Obsidian
33.35mm x 22.49mm x 6.99mm
USD 35.49
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ID: 4337321 pcs
17.37ct Obsidian
29.93mm x 14.18mm x 6.49mm
USD 17.37
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ID: 4339651 pcs
47.70ct Obsidian
30.64mm x 24.07mm x 7.40mm
USD 47.70
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ID: 3912611 pcs
37.60ct Obsidian
38.89mm x 28.05mm x 4.88mm
USD 112.80
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ID: 4339661 pcs
37.83ct Obsidian
33.07mm x 23.54mm x 7.08mm
USD 37.83
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ID: 4340411 pcs
30.42ct Obsidian
28.16mm x 21.79mm x 7.20mm
USD 30.42
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Obsidian
Obsidian is a naturally occurring volcanic glass. It is formed when felsic lava extruded from a volcano cools without crystal growth. Obsidian has been known since prehistoric times, and has some fascinating properties as well as some important practical uses. In addition to its use as a gemstone, obsidian has been used in cardiac surgery, as well-crafted obsidian blades have a cutting edge many times sharper than high-quality steel surgical scalpels.

In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern, and this is known in the gem trade as snowflake obsidian.
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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

Size Comparison Chart