Inspired by the white sands and turquoise waters of Corsica, these one-of-a-kind earrings feature eye-catching Yowah boulder opals complemented by diamond center stones, 18K yellow gold, and Peruvian opals. Yowah boulder opals Peruvian opals Diamonds, 0.30 tcw 18K yellow gold Post back Made in USA. Men Accessories - Jewelry > Jan Leslie > Saks Fifth Avenue > Barneys. Jan Leslie.