Mastoloni's elegant freshwater cultured pearl earrings are crafted of 18-karat yellow gold and embellished with shimmering white diamonds. Founded in the mid-1920s by Frank Mastoloni, Sr., the family-owned business has grown to become one of the most respected in the cultured pearl industry. The company is renowned for its meticulous designs, superior craftsmanship and unparalleled quality. Diamonds, 0.07ctw. Pierced only.