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Rare Natural Bicolor Diamond
The Elahera Gem Field in Central Sri Lanka
The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.
Two Foraminifera-Like Objects Found in a Natural Saltwater Pearl
The Extraordinary Backstory of Natural Diamonds: A Diamond Is (and Has Been) Forever
Jewelry Development Impact Index
The Jewelry Development Impact Index (JDI), one of the initiatives from the second Jewelry Industry Summit in January 2017, has become the flagship project of the Minerals, Materials and Society (MMS) program at the University of Delaware. Patricia Syvrud, development manager of MMS, discussed the program, which she calls a “road map to responsibility.”
In Memoriam: Jean Claude Michelou
The gem and jewelry industry mourns the loss of one of its true leaders.
Fordite from the Corvette Assembly Plant
A New Method for Determining Gem Tourmaline Species by LA-ICP-MS
Presents a simplified but comprehensive classification of gem tourmaline species based on quantitative measurement of six common major elements.
Brownish Red Zircon from Muling, China
Gem-quality brownish red zircon occurs in alluvium derived from Tertiary alkali basalt at Muling in the northeast Chinese province of Heilongjiang.
The First Identified Non-Nacreous Beaded Cultured Pearl
Ametrine Optical Dishes: Windows into the Effects of Crystal Structure
