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Frequently Asked Questions (FAQ) / Gemstone Clarity Grading

Most of your gems are graded with letters like VVS and VS. But some are not. Why is that?

The clarity grades of IF, VVS, VS, SI and I1 apply to transparent gemstones, where the interior of the stone is visible. If a gem is translucent or opaque, you can't see inclusions. So these gems are simply graded as translucent or opaque. You will typically see this grading for cabochons and even for some faceted gems such as fire opal or black tourmaline.

For more information on gemstone clarity, learn more here.
For more information on gemstone clarity vs gemstone cut, learn more here.
For gemstone clarity types and gemstone grading, learn more here.

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  • First Published: February-20-2006
  • Last Updated: March-22-2017
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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