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.
The Cullinan Diamond Centennial: A History and Gemmological Analysis Of Cullinans I And II
Eight decades after the Cullinan diamond was mined, a team of gemmologists examined the two famous gems that were created from it to become part of the Crown Jewels of England.
An Important Exhibition of Seven Rare Gem Diamonds
The stories behind seven strikingly beautiful rare natural diamonds, united in an exhibit at the Smithsonian, are told here.
Modern Diamond Cutting and Polishing
Over the last 25 years, the diamond-cutting industry worldwide has been revolutionised by sophisticated instruments that provide invaluable aid in the process of creating a polished gem.
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.
The Changma Diamond District, Mengyin, Shandong Province, China
One of China's most important discoveries to date is the Changma kimberlite district in Shandong Province.