Novel diamond products and the manufacture thereof

Details Novel diamond products and the manufacture thereof Novel diamond products and the manufacture thereof

1973-11-02

1977-08-16

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

63 32, 106 42, 206538, 23289, C01B 3106

Patent

active

040426734

ABSTRACT:
Diamond crystals of controlled impurity content and/or impurity distribution and reaction vessel configurations for the production thereof are described. Combinations of "dopant," "getter" and "compensator" materials are employed to produce gem stones of unusual color patterns, or zoned coloration, using specific reaction vessel configurations.

REFERENCES:
patent: 3142595 (1964-07-01), Wentorf
patent: 3148161 (1964-09-01), Wentorf et al.
patent: 3268457 (1966-08-01), Giardini et al.
patent: 3297407 (1967-01-01), Wentorf
patent: 3310501 (1967-03-01), Darrow et al.
Armagnac "Popular Science" vol. 197, No. 3, 197, pp. 82, 83, 134, & 137.
"Jewelers' Circular-Keystone" July 1970 pp. 186-189.

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