A vintage diamond cluster ringAn early 20th century cluster ring. Square shaped head, 7. 5x7. 5mm, depth 4. 5mm. Set with nine old brilliant cut white diamonds 1. 8mm each, colour J k, clarity Si P1. Each shoulder is set with three 1. 4mm diamonds, total diamond weight estimated at 0. 25 carats. The head tests as platinum, tyhe shank is stamped 18CT and tests as 18 carat gold. Weight 4grams. Period assumed 1920 1930, no hallmarks required for this period. Size O, we can resize