From everything I have been able to learn about the Russian synthetic diamond, the actual hardness is 9.85, not 9.5 as posted earlier (poor proofreading on my part)....
Please tell us where you got this
James Marker, GG
PS - To the group…
If you are interested in learning more about synthetics and
actual detection, please take classes and courses from GIA.
Call 800-421-7250 ext. 4001 or 760-603-4001 for more
or to enroll.
Detecting Synthetic Diamonds
(Gemology Continuing Education)
(2 hours, 9 -11 AM)
Carlsbad, CA - May 21, Jul 16, or Sep 17
New York, NY - April 23, June 25, or September 24
Los Angeles, CA - Apr 16, May 28, Aug 20, or Nov 12
Atlanta - Apr 16
Washington DC - May 14
Boston - Jun 4
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