See Gem As
Tools
Research
A Chart for the Separation of Natural and Synthetic Diamonds
Cross in Natural Diamond
Large CVD-Grown Diamond Resubmitted after HPHT Treatment
Quarterly Crystal: Diamond in Diamond
Examination of a South African diamond reveals an eye-visible diamond inclusion.
Trigon Party on a Diamond
Update on Ametrine from the Yuruty Mine, Bolivia
The Extraordinary Backstory of Natural Diamonds: A Diamond Is (and Has Been) Forever
“Out of the Darkness” …and Into the Light of Diamond Fluorescence
Colored Bands in CVD-Grown Diamond
An Examination of Four Important Gems
Several famous and historical gemstones in the Smithsonian's collection are examined and reported on.
