Lecture • Enhanced Emeralds/Madagascar Sapphire • Honolulu • 10 November 2005
by Richard W. Hughes
Discussion of emerald enhancements, along with a 2005 mission to ruby and sapphire localities in Madagascar.
Lecture • Enhanced Emeralds/Madagascar Sapphire • Santa Fe • 29 August 2005
by Richard W. Hughes
Discussion of emerald enhancements, along with a 2005 mission to ruby and sapphire localities in Madagascar.
Lecture Venues/Groups Addressed by Lotus Gemology's Expert Gemologists
by Richard W. Hughes
A listing of some of the venues/groups where Lotus Gemology's expert gemologists have delivered lectures in the past…