| 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 colourless. 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 |
KR100687775(B1) |
申请公布日期 |
2007.02.28 |
| 申请号 |
KR20027013121 |
申请日期 |
2001.04.02 |
| 申请人 |
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发明人 |
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| 分类号 |
B01J3/08;B01J3/06;C01B31/06;C30B29/04;C30B33/00 |
主分类号 |
B01J3/08 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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