Identification of Heat-Treated Corundum
Hiroshi Kitawaki, Ahmadjan Abduriyim, and Makoto Okano

Treated Diamond: A Physicist’s Perspective
Mark E. Newton

Role of Beryllium in the Coloration of Fe- and Cr-doped Synthetic Corundum
Visut Pisutha-Arnond, Tobias Häger, Pornsawat Wathanakul, Wilawan Atichat, Jitrin Nattachai, Tin Win, Chakkaphant Sutthirat, and Boontawee Sriprasert

The Treatment of Ruby and Sapphire, with Implications for Gem Identification and the Integrity of the Product
Kenneth Scarratt

Indications of Heating in Corundum from Experimental Results
Chakkaphan Sutthirat, Krittaya Pattamalai, Somruedee Sakkaravej, Sureeporn Pumpeng, Visut Pisutha-Arnond, Pornsawat Wathanakul, Wilawan Atichat, and Boontawee Sriprasert

HPHT Treatment of Type IaB Brown Diamonds
Jef Van Royen, Filip De Weerdt, and Olivier De Gryse

Beryllium-Assisted Heat Treatment Experiments on Blue Sapphires
Pornsawat Wathanakul, Tobias Häger, Wilawan Atichat, Visut Pisutha-Arnond, Tin Win, Pantaree Lomthong, Boontawee Sriprasert, and Chakkaphant Sutthirat