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Rubies at the Bangkok Gem Show

Written By Off the Cuff Video on Wednesday, Feb 02, 2011 | 04:03 AM

 
Nick Hodgson of Astrogems.com interviews Navratan Manihar of Manihar International Co Ltd at the Bangkok Gem & Jewelry Show about the prolific supply of heat treated Ruby which is very different from natural but used extensively in the conventional jewelry industry.

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