Antique ring circa 1880 set with 1 sapphire of +- 2.00cts. surrounded by 16 diamond rosette cut

Antique ring circa 1880 in yellow gold 18ct. and platinum gold set with 1 sapphire of +- 2.00cts. surrounded by 16 diamond rosette cut ring size: 56-58 ring 12.30 mm. x 10.30 mm.

Estimation
500€ - 750€