Ross-Simons is always looking for new ways to reinvent essential jewelry styles. The signature omega necklace is a timeless style. crafted with the passion and expertise of our Italian goldsmiths. Sleek and chic when worn solo or paired with your favorite pendant. 2mm wide. Figure 8 safety. Box clasp. 18kt yellow gold omega necklace. Each Ross-Simons item arrives in a fine jewelry presentation box. Shop Ross-Simons jewelry risk-free as all items include a 30-day. 100% money-back guarantee.