adamasgem
Brilliant_Rock
- Joined
- May 23, 2003
- Messages
- 1,338
Date: 7/5/2008 4:51:49 AM
Author: DiaGem
Can you take nitrogen out of the yellow Diamond material? You don''t remove nitrogen, by HPHT you can either break up or associate aggregates of nitrogen to either remove color (single substitutional nitrogen aggrgated to nitrogen pairs) or form aggregates with more color creating capability to change and intensify the color.
Is it possible to make a slightly yellow tinted Diamond white by cutting it in certain facet degrees? You can make it appear whiter by shortening the average absorption pathlengths, or you can intensify and concentrate the color in certain areas by lengthening the average pathlengths Sergeys analysis here is very valuable, BUT IT DOESN''T NECESSARILY apply (meaning tell you how to do it) for zoned (Inhomogeneous) material, and I would consider it generally as macroscopic rather than microscopic analysis technique, even though it is the best and most valuable that we have at this time. Management says concentrate on solving 95% of the problems, maybe not realizing that perhaps the total $$ value in fancies may be overwhelmed by that 5% that can''t be addressed now by a limited analysis.
I really don''t know, just an educated guess based on huge price differences for the rarer colors.