Vintage Tiffany & Co 18K Yellow Gold Nut Shape Sapphire Ring

Vintage Tiffany & Co 18K Yellow Gold Nut Shape Sapphire Ring. This is a beautiful and rare locknut shape sign Tiffany and co 18k ring with six rectangle cut sapphires. The sapphires are natural blue gem quality with amazing color and clarity, estimated sapphire weight 1.20 carats. The ring is in great condition, Ring Size 6, Weight 6.1 grams, Ring width 4mm