Radioactive Morganite
Gems & Gemology Turns 90!
Blue Opal from Chile
“Out of the Darkness” …and Into the Light of Diamond Fluorescence
Zoned Trapiche Emerald with Goshenite Overgrowth
Splendors from the Deep: Historic Treasures from a Spanish Shipwreck
Colored Bands in CVD-Grown Diamond
Fashioned Queen Conch Shell Bead
Green Haüyne
An Extraordinary Calcite Gemstone
The unusual effects of dispersion and twinning produced by a calcite gemstone.
Ametrine with Layers of Smoky Quartz
Update on Ametrine from the Yuruty Mine, Bolivia
Citrine from Zambia
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.”
Finds from the Secondary Market
Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.
Fortieth Anniversary of the Belmont Mine
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