Natural-Colour Blue, Grey and Violet Diamonds: Allure of the Deep
Summarises data collected on more than 15,000 natural blue/grey/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this colour range.
Black Diamonds from Marange (Zimbabwe): A Result of Natural Irradiation and Graphite Inclusions
Characterises a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.
The Very Deep Origin of the World’s Biggest Diamonds
Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular and Resorbed), that formed in a super-deep environment.
Mining Diamonds in the Canadian Arctic: The Diavik Mine
Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.
An Introduction to Photoluminescence Spectroscopy for Diamond and Its Applications in Gemmology
Presents the underlying physics and methodology of this analytical technique, which has become an essential tool in identifying treated and synthetic diamonds.
Letšeng’s Unique Diamond Proposition
Explores the history, geology and current production of this unique source of large diamonds.
Botswana’s Scintillating Moment
Examines the history of diamond production in Botswana and the long-term outlook for beneficiation through value-added industries.
Recent Advances in Understanding the Geology of Diamonds
Examines the last two decades’ advances in analysing and understanding the formation of natural diamonds, and their relation to the Earth’s formation.
Book Review: From a Snowflake to an Iceberg: The McFerrin Collection
By Dorothy McFerrin, publ. by the McFerrin Foundation, College Station, Texas, 2013, US $125 (£74)
Fluorescence produced by optical defects in diamond: measurement, characterisation and challenges
How variations in UV lamp output can affect observed fluorescence colour and intensity.