US 2004/0175499 A1 · Coloured diamond

Abstract

A method of producing a single crystal CVD diamond of a desired colour which includes the steps of providing single crystal CVD diamond which is coloured and heat treating the diamond under conditions suitable to produce the desired colour. Colours which may be produced are, for example, in the pink-green range.

Claims61

Dependent claims

A method of producing single crystal CVD diamond of a desired colour includes the steps of providing single crystal CVD diamond which is coloured and heat treating the diamond under conditions suitable to produce the desired colour.

Dependencies are inferred from the claim text.

Facts

Application

10/655,040Filed 5 Sep 2003

Priority

GB 0220772.86 Sep 2002

Published

9 Sep 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

C30B 29/04
Elements: diamond
C30B 33/00
After-treatment of single crystals or homogeneous polycrystalline material with defined structure
C30B 33/02
After-treatment of single crystals or homogeneous polycrystalline material with defined structure: heat treatment
Y10T 428/2982
Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof: particulate matter…

Abstract

Claims61

Dependent claims

Dependencies are inferred from the claim text.

Coloured diamond

Life of this patent

Abstract

Claims61

Coloured diamond

Life of this patent

Abstract

Claims61