A fine early 20th century sapphire and diamond ringAn antique five stone boat shaped ring set with three old brilliant cut white diamonds, centre 3. 6mm (0. 17 carats) each side a deep cornflower blue sapphire 3. 7mm and at each end a smaller diamond 3mm (0. 10 carats) all sizes estimated. Diamond colour H j, clarity Si. Hand carved head in a boat shape, 17x5. 2mm, depth 3,. 5mm, weight 3. 1grams. An iconic style of ring from the early part of the 20th century. No hallmarks were legally required for