Sotheby's, Geneva, November 1999

Lot 19 Ruby and Diamond Ring

Collet-set with step-cut ruby weighing 3.07 carats, on a pave-set diamond ground, mounted in 18 karat gold, size 51.
Accompanied by GRL report number 9803107 stating that the ruby is of Burmese origin. In our expert opinion this tone has been heat treated.