Ross-Simons is the authority on fashionable must-haves. Finely crafted in polished 18kt yellow gold over sterling silver, our fabulous Byzantine necklace is a must-have foundational piece for any fine jewelry collection. A classic, instantly recognizable design! Lobster clasp, 18kt gold over sterling Byzantine 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.