发明名称 HIGH TEMPERATURE/HIGH PRESSURE COLOUR CHANGE OF DIAMOND
摘要 A method is provided for changing the colour of a brown type IIa diamond from brown to pink. The method involves subjecting the diamond to selected conditions of elevated temperature and elevated pressure to produce the colour change.
申请公布号 IL151997(D0) 申请公布日期 2003.04.10
申请号 IL20010151997 申请日期 2001.04.02
申请人 GERSAN ESTABLISHMENT 发明人
分类号 B01J3/06;C01B31/06;C30B29/04;C30B33/00 主分类号 B01J3/06
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