Aztec-Style Emerald-Taxco Mexico ring

One presumed silver unisex hand made carved Emerald Native American ring with split shank with a bright polish and antiqued finish. Condition is good. The ring depicts an Aztec-style head with a face carved from Emerald and wearing a beaded crown. Total weight 15.06gm Size 6 Was appraised by the American Institute of Gemological Research in Denver CO,