Vietnam
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Ruby Connoisseurship | Seeing Red
A loving look at ruby – the gem of passion – from the standpoint of the connoisseur.
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Spinel | Resurrection of a Classic
Since the turn of the millennium, the price of fine spinel has risen at an incredible pace. No longer simply the poor man's ruby, spinel is finally getting the attention it deserves as one of the world's premier gems.
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World Sapphire Market Update | 2020 | Lotus Gemology
The world sapphire market has changed dramatically in the past 40 years. The authors review the famous sources of the past and look at the current situation in sapphire around the globe.