Dharam Creations gets selected for best booth design at Hong Kong Fair

The company is a a branch office of Dharmanandan Diamonds

Post By : Diamond World News Service On 12 October 2009 10:34 PM
Signity, the Swarovski-owned distributor of precision-cut gemstones has acquired the California-based producer of enhanced topaz, Leslie & Co. %% According to reports the acquisition would bring several exciting topaz colours into Signity’s colour portfolio that are enhanced through Leslie’s patented Pollak Heat Diffusion (PHD) process. %% The Leslie PHD Process is a fairly well known chemical heat diffusion method developed by Richard Pollak, initially for sapphire and ruby, whereby metal oxides are inserted into the crystal lattice structure of the gemstone.

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