Jaipur Jewelry Show 2009 organized a seminar on heat treatment at Rajmahal Palace hotel om December 21, 2009. Mr. Bhandari, Chemical engineer, IIT, Delhi explained about heat treatment of rubies and sapphires.
Seminar on Heat treatment at Jaipur Jewelry show 2009
(Jyoti Kothari, Proprietor, Vardhaman Gems, Jaipur represents Centuries Old Tradition of Excellence in Gems and Jewelry. He is also ISO 9000 professional)