Art Deco ring in yellow gold and platinum with sapphires and diamonds

Vintage Art Deco ring in 18K yellow gold and platinum, set with a dark blue oval-cut sapphire weighing approximately 1.50 ct in the center, and 12 rose-cut diamonds.
Four blue stones are set in each corner.


Ring size: 53 (FR)
Gross weight: 2.05 g
Length: 1.3 cm
Width: 1 cm
Hallmark: Pt (partially worn)