HATTON LABS Black Agate Signet Ring . Men . 9 Signet ring featuring a black Agate stone. 7 - 54mm N 7.5 - 55.6mm O 8 - 57.2mm P 8.5 - 57.82mm Q 9 - 58.7mm R 9.5 - 60.3mm S 10 - 61.9mm T 100% Solid Sterling Silver Made in Italy EUR 180.59 1