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Diamond Sources and Production: Past, Present, and Future
Diamond production’s future appears to belong less to Africa and more to Australia, Canada, and the Russian Federation, according to this overview of geologic trends in the industry.
A Visual Guide to the Identification of Filled Diamonds
This article illustrates the various features in filled diamonds and explores the best techniques for examining them.
A History of Diamond Sources in Africa: Part I
For more than 100 years, Africa has produced large commercial quantities of diamonds and important individual stones.
A History of Diamond Sources in Africa: Part II
This article explores the mining developments and new diamond occurrences in Africa that led to many of the key concepts in modern geology.
De Beers Natural versus Synthetic Diamond Verification Instruments
Two instruments have been developed at De Beers DTC Research Centre, Maidenhead, to distinguish synthetic diamonds from natural diamonds.
Gemological Properties of Near-Colorless Synthetic Diamonds
Examination of 51 colorless to near-colorless synthetic diamonds from all known sources of production confirms that they can be distinguished from similar-appearing natural diamonds on the basis of their gemological properties.
The Rise to Prominence of the Modern Diamond Cutting Industry in India
This article reviews the rise of the modern diamond cutting industry in India and its impact on the world diamond trade.
Modeling the Appearance of the Round Brilliant Cut Diamond: An Analysis of Brilliance
A mathematical model which can analyze how appearance factors depend on proportions.
Spectroscopic Evidence of GE POL HPHT-Treated Natural Type IIA Diamonds
Results from spectroscopic analyses of GE POL high-pressure high-temperature (HPHT) annealed nominally type IIa diamonds are presented, and these spectral characteristics are compared with those of untreated diamonds of similar appearance and type.
Identification of HPHT-Treated Yellow to Green Diamonds
Greenish yellow to yellowish green HPHT-treated diamonds exhibited highly saturated body color, well-defined brown to yellow octahedral graining, and visual evidence of heating, among other characteristics.
Discovery and Mining of the Argyle Diamond Deposit, Australia
Australia’s Argyle mine has set records for volume since its establishment in 1983, and is additionally noted for its rare pink diamonds.
Modeling the Appearance of the Round Brilliant Cut Diamond: An Analysis of Fire, and More about Brilliance
This second major article in a three-dimensional modeling study analyzes fire – the visible extent of light dispersed into spectral colors.
