This course teaches students the basics of how to identify treated and untreated colored stones, with special emphasis on the enhancements commonly performed on rubies and sapphires.
Schedule :
Monday - Friday, 09.00 a.m. - 16.00 p.m.
18 - 19 June 2018
17 - 18 Sep 2018
For more information please contact :
Asian Institute of Gemological Sciences 919/539 Silom Road, Jewelry Trade Center, 48 fl. Bangrak, Bangkok 10500, Thailand
Tel : 02-2674315-9
E-mail : registrar@aigsthailand.com