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Unusual Corundum Doublet

An Unusual Corundum Doublet

August 12 2016

Summary of ‘A Lead-Glass-Filled Corundum Doublet’ by Supparat Promwongnan, Thanong Leelawatanasuk and Saengthip Saengbuangamlam.
 

This Gemmological Brief describes a 1. …

Bruce Cleaver

Cleaver Appointend De Beers CEO

August 12 2016

Bruce Cleaver was announced as the new CEO of De Beers, effective July 1, 2016.

He assumes the role from Philippe Mellier, who had been CEO of the mining group for five ye…