Joined: Sun Oct 16, 2005 12:22 pm Posts: 21602 Location: San Francisco
GIA wrote:
The various means of distinguishing colorless and colored synthetic gem-quality diamonds from natural diamonds is well documented in research results published over the past 30 years. This distinction can sometimes be made by a gemologist, however positive identification of synthetic diamonds requires examination in a fully equipped gem-testing laboratory with experienced staff.
Joined: Sat Sep 15, 2012 10:37 pm Posts: 73 Location: Oakland CA
You would have enjoyed Jim Shigley's AGA Vegas conference presentation on lab grown diamonds Barbra! I've invited him to speak to our alumni chapter next year.
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