Developments in the Detection of Current HPHT and CVD Synthetics
David Fisher
De Beers Technologies, Belmont Road, Maidenhead, SL6 4JW, UK)
Abstract: Recent changes in the properties of both HPHT and CVD synthetics will require changes in the way identification criteria are applied. De Beers continually develops the Verification Instruments it produces to respond to these changes. The Automated Melee Screening instrument provides screening capability for melee sized synthetic stones and the introduction of filtering into the latest version of the DiamondViewT"' instrument has enhanced its capability for the identification of both HPHT and CVD synthetics.
Key words: HTHP CVD. Synthetics . diamond.