Description: Silver ring, famous (Aref) craftsmanship, 990 sterling silver, and a natural Yemeni agate stone (smoky black) with rare natural formations. Specifications: Ring weight: 35 grams Size: US 11 (can be resized upon request) Silver purity: 990 Stone type: Yemeni smoky agate Stone dimensions: Length: 23 mm Width: 19 mm