A Ring, 18 kt gold, set with 12 brilliant cut diamonds and an oval cut Ceylon spinel weighing approximately 6.03 ct. (13,17x10,58x6,28 mm), Europe, 20th/21st C., Lisbon assay mark (post-1985) with certificate No. GRS2015-015692 Dimensões (altura x comprimento x largura) - 16 (17,7 mm) cm; Peso - 7,1 g.