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Gem Stone Guide

Colored Inclusions

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Gemological International Laboratories (GIL) is an international gemstone testing facility specializing in comprehensive diamond and colored gemstone analysis.

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919/1, Room No. 302, 3rd Floor Jewelry Trade Center Silom Road, Bangkok 10500
Phone: +66 2 630 0014 +66 2 630 0015
contactus@gillabs.com

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45B West Wilmot Street, Suite 202 Richmond Hill, Ontario L4B 2P3 Canada
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Gems & Gemology
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