Platinum ring with diamonds Platinum, ca. 18 g.... Lot 851

Platinum ring with diamonds Platinum, ca. 18 g. Modern band ring with rectangular domed ring head, set with 78 diamonds in princess cut, ''invisible settings'', total ca. 3,0 ct. TW/VS. Ring size 54. invisible setting: ''In painstaking, precise and skillful work, the small stones must be precisely matched in color and shape, fitted like small mosaic pieces and set on a gold lattice base. This elaborate technique was developed in the mid-20s by VAN CLEEF & ARPELS''.