GemSelect now offers gemological certificates for nearly all gemstone varieties we sell. You have the option to purchase a certificate when you add an item to your shopping cart. Please note: if you need a certificate for a gem, you must order the certificate at the time you place the order for the gem.

The certificates are gemstone identification reports issued by independent gemological laboratories. We use both AIGS (the Asian Institute of Gemological Sciences) in Bangkok, and BGL (the Burapha Gemological Laboratory) located in Chanthaburi.

The gem identification reports certify the gem type -- e.g., natural sapphire -- but they are not grading reports for color or clarity or value. The AIGS reports identify any gem treatments, but the BGL reports only certify a gem as natural. Generally we send all unheated sapphires to AIGS for certification, as well as most quartz specimens and some rare and unusual varieties. If you prefer an AIGS certificate, just email us at the time you place your order.

We test samples of all gems we offer for sale on our website. But due to our large inventory, we do not certify every stone before it is sold. So when you order a certificate for a gem, we usually have to send the gem to the lab for testing. We try to certify gems within 5 days whenever possible, but sometimes it can take a few days longer when we have to send a gem to Bangkok.

Please note that if you order an item which consists of two or more gemstones, the lab will test only one gem from the pair or lot.