18KT Star Sapphire Ring, Schlumberger for Tiffany & Co.

Bezel set with one blue-gray star sapphire cabochon (10.00 x 10.80 x 8.00mm) weighing approximately 9.0 carats in a heavy yellow gold mount signed "Tiffany 18KT / Schlumberger."

3.5mm; Ring size 7.75

13.3 dwt.

Sapphire with grayish blue hue with sharp six ray star and with moderate amount of color zoning.

Good estate condition; sapphire with surface scratch.

$2,000 - 4,000