Sappphire and diamond ring, bezel set with an oval cut pink sapphire estimated as 0.50ct on a pierced collet s... An 18ct two tone gold sapphire and diamond ring, bezel set with an oval cut pink sapphire estimated as 0.50ct on a pierced collet set with 2 round cut pink sapphires to shoulders bezel set in white gold with 2 round brilliant cut diamonds totalling an estimated 0.12ct, size L, wt. 3.85g.