ART DECO ring with 4 old-cut diamonds

ART DECO ring with 4 old-european-cut diamonds totalling approx. 2.30 ct, WHITE-TIN (H-N)/SI-P, and 60 old-european-cut and rose-cut diamonds totalling approx. 1.02 ct, platinum, 4.6 g, ring size: 50, W: approx. 1.1 - 27.8 mm, circa 1910/20, good condition for its age, 'Venus conch' hallmark. Signs of repair, interior setting broken on the sides. Fine ajour an millegriffes craftsmanship.