Accompanied by report no. GRS2012-091130 dated 7 September 2012 from the Gem Research Swiss Lab stating that thirty-seven rubies are of Burmese origin, red to vivid red colour (GRS type "pigeon's blood") and with no indication of thermal treatment
Accompanied by report no. GRS2012-091131 dated 7 September 2012 from the Gem Research Swiss Lab stating that eighteen rubies are of Burmese origin, vivid red colour (GRS type "pigeon's blood") and with no indication of thermal treatment
Accompanied by report no. GRS2012-091131 dated 7 September 2012 from the Gem Research Swiss Lab stating that eighteen rubies are of Burmese origin, vivid red colour (GRS type "pigeon's blood") and with no indication of thermal treatment