C. 1980. Always sleek, endlessly sophisticated. This classic omega necklace joins our Estate collection, masterfully crafted with glossy, ti… C. 1980. Always sleek, endlessly sophisticated. This classic omega necklace joins our Estate collection, masterfully crafted with glossy, tight-fitting links of 14kt yellow gold. Finishes with a figure 8 safety and push-button clasp. Exclusive, one-of-a-kind Estate Jewelry.