High temperature/high pressure colour change of diamond

Details High temperature/high pressure colour change of diamond High temperature/high pressure colour change of diamond

B - Operations, Transporting

01

J

B01J 3/06 (2006.01)

Patent

CA 2405409

The invention provides a method of changing a grey type IIb diamond from grey to blue or enhancing the colour of a type IIb diamond. Selected conditions of high temperature and high pressure are used to produce the colour change.

L'invention concerne un procédé de changement d'un diamant gris de type IIb du gris vers le bleu ou d'amélioration de la couleur d'un diamant du type IIb. On utilise des conditions de haute température et de haute pression sélectionnées pour obtenir le changement de couleur.

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