Vintage Colour Change Sapphire

€18,500

Extremely rare natural colour change 7.17 carat sapphire. Blue in daylight, purple in incandescent light. No heat treatment. Rectangular cushion shape. Certified. surrounded by approximately 1.50 carats of old cut diamonds, on 18k rose gold. The ring dates from late 1800s.

As seen at Baftas 2020