More Details Armenta ring from the Old World Collection. Blackened sterling silver setting with bezel-set diamonds and Crivelli crosses. 18-karat yellow gold band with champagne and white diamond trim at shoulders. Faceted, oval-cut emerald, white quartz, and mother-of-pearl triplet. 0.58 total diamond carat weight. Approx. 0.6"L (12mm). Made in the USA.