There are new sapphire treating techniques out there now, as well as the old beryllium treatment,they now use diffusion with titanium and cobalt which only soaks in to just under the surface of the sapphire, so be aware and always ask what your gem has gone through.To get these chemicals in, the sap...
This won a perfect 100 points in faceting competition, a big achievement for the cutter, beautiful gem too, but what a fabulous faceting design. Official description below.
details below: description by James R. Clark:
The Section A stone, for the 2010 International Faceting Challenge, was the ROBIN designed by John Wren of the Australian Faceters Guild and faceted by James R. Clark.
- Jeffrey Hunt ... See MoreSee Less
We went to Chantaburi on saturday, with its big gemstone market 3 hours drive out of Bangkok, I bought a few stones there, but didnt get the ones I wanted. Buyers of gems sit, sellers walk around, I was lucky, nice airconditioned building to trade in. (2 photos) ... See MoreSee Less