专利名称：HIGH TEMPERATURE/HIGH PRESSURE
COLOUR CHANGE OF DIAMOND
发明人：BURNS, Robert, Charles,FISHER, David,SPITS,
Raymond, Anthony
申请号：EP01921695.1申请日：20010402公开号：EP1272266B1公开日：20061004
摘要：The invention provides a method of changing a grey type IIb diamond from greyto blue or enhancing the colour of a type IIb diamond. Selected conditions of hightemperature and high pressure are used to produce the colour change.
申请人：ELEMENT SIX PTY LTD
地址：ZA
国籍：ZA
代理机构：Talbot-Ponsonby, Daniel Frederick
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