(c1960) A stylish 18k yellow gold and hard stone. The 1 1/4" x 7/8" very deep blue (almost black) "shrimp"bombe ring in the style of Seaman Schepps. A good looking and classic style. 18.5g Size 6.5 Measurements Specifications Materials/Technique: 18k - tested as sapphire but appears as an unusual hard stone material. Reference: JU10081624187