Vintage ladies platinum ring set with blue star sapphire measuring 10.8 mm by 9.6 mm by 6.2 mm thick. We estimate the weight of the sapphire to be 6.3 Carats. There are also 6 baguette diamonds channel set, 3 on each side of the sapphire. We estimate their total diamond weight to be 0.30 Carats. The ring measures 13.5 mm x 22 mm x 25.3 mm high. It weighs 13.5 grams and is size 6 and 3/4. The ring is stamped inside PLATINUM.