Black Tahitian and white South Sea Pearl diamond ring $ 5,500.00 18ct white gold black Tahitian and white South Sea pearl and collection quality diamond ring. Categories: Pearls Rings Related collections Emerald cut diamond trilogy engagement ring $ 69,950.00 Two tone emerald cut diamond gents wedding band R0022 $ 5,916.00 Exotic Morganite and diamond ring in platinum R0014 $ 12,500.00 Black rhodium plating gents wedding band with white diamonds R0020 $ 6,750.00