radium-treated diamond
Written by Administrator   
Monday, 29 October 2007
radium-treated diamond. A diamond whose color has been changed (usu­ally to greenish) as a result of being exposed to the radioactive emana­tions of radium salts. Because of the prolonged radioactivity of Diamonds thus treated and consequent danger of injury to the finger of the wearer, this form of color alteration is not practiced commercially.