A SINGLE-STONE RUBY RING

A SINGLE-STONE RUBY RING
Set with a rectangular-cut ruby weighing 4.52 carats with baguette-cut diamond two-stone shoulders to the plain hoop
With certificate 30500 dated 11/7/1997 from the SSEF Swiss Gemmological Institute stating the ruby is of Burmese origin and shows no indications of thermal treatment