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Tuesday, March 25, 2008

Rough Diamond Imitations In The Market

According to lab gemologists, natural (quartz/phenakite/topaz) or man-made colorless to near-colorless (glass/syn. cubic zirconia/YAG/GGG/strontium titanate/lithium niobate) rough gem materials have been found in natural diamond parcels in the marketplace to confuse the unwary + if in doubt always consult a reputed gem testing laboratory.

Lab Alert!
http://www.gemlab.net/website/gemlab/fileadmin/user_upload/Research/Gemlab-Newsletter-04-2008-forPDF.pdf

Useful link:
www.gemlab.net

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