Lovely two-tone 18k gold (750‰) ring set with an oval-shaped Ceylon sapphire weighing approximately 1.60 carats with a colour change (blue and purple) surrounded by old-cut diamonds.

Crafted between 1890 and 1900.
Tdd: 50
Gross weight: 3.9 g
Accompanied by a Certificate from the French Gemmology Laboratory LFG no. 419937 dated 04/09/2025 stating: Natural sapphire
Colour: Bright blue
Opacity: Transparent
Origin: Sri Lanka (Ceylon)
Treatment: no signs of heat treatment