You are here

More Fake Rough Diamond Crystals Reported

More Fake Rough Diamond Crystals Reported

The Gemlab Research Newsletter dated March 23 reports that more fake diamond crystals, “ingeniously designed rough diamond imitations,” have appeared in the trade.

Noting the beautiful craftsmanship of the crystals to appear like diamond, Thomas Hainschwang of GEMLAB, Laboratory for Gemstone Analysis and Reports in Balzers, Liechtenstein, who sent the report, observed that the crystals were noticeably void of trigons, the triangular etch marks commonly found on octahedral diamond crystals.

That led to some basic testing with Polaroid plates which determined that the crystals could not be diamond. Hainschwang says that phenakite as the likely substitute.

JCK reported on such imitation diamond rough in March of 2007

For more information and images on this latest report, visit the Gemlab Web site.

Register For

JCK Tucson

Wednesday, Feb. 3 - Sunday, Feb. 7, 2016

Register Today!
Subscribe now to

JCK News Daily

Receive the latest news directly to your inbox



We will miss you!!!

I think #GIA is losing trust of the jewelers.. I would go for #IGI...

Is eternal-gold even 14k? I have read so many reviews from...

We all know what this "game" is all about and i believe that someone...

If the so-called smartwatch's main function, apart from time, is...