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Frequently Asked Questions (FAQ) / Natural Gemstones Only

Are all Gemstones for Sale at GemSelect Natural?

Collection of Natural Gems

We only sell natural gemstones, mined from the earth. We do not deal in any synthetic or lab-created gems. We guarantee all our gems to be natural and as described. Gemstones may be enhanced through treatment, but we fully disclose any and all treatments individually on each of our gemstone detail pages. Some examples of gemstone treatments / enhancements include routing heating, oiling and diffusion and assembling (opal doublets and ammolite). Doublets and assembled gemstones should not be confused with 'composite gemstones' (we do not sell any composites).

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  • First Published: February-20-2006
  • Last Updated: September-12-2017
  • © 2005-2018 all rights reserved.
    Reproduction (text or graphics) without the express written consent of (SETT Company Ltd.) is strictly prohibited.
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Colored Gemstones
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