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Frequently Asked Questions (FAQ) / Certified Gemstones & Country of Origin

Can you certify country of origin for your gemstones?

Certified Colombian Emerald

We offer identification reports from AIGS and BGL labs that can identify or determine if a material is natural, and in many cases, any treatments and enhancements made to the gemstone in question. These types of brief identication reports do not certify country of origin. However, there is growing interest in certifying gemstone origin and by special request, we can offer full reports which can include origin statements (example: Sri Lanka or Ceylon sapphire, Burma ruby and Colombian emerald). Please be aware that the results are not always conclusive, and most labs offer their identification as a professional opinion of 'probable origin' only. For more information on this issue please see our article on country of origin. If you would like to inquire about this type of origin report that we can offer, please contact our customer service so that we can arrange the gemstone certification service for you.

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  • First Published: February-20-2006
  • Last Updated: September-12-2017
  • © 2005-2019 GemSelect.com all rights reserved.
    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
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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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