Ross-Simons - 50.00 ct. t. w. Emerald Necklace in 18kt Gold Over Sterling. 18". Big green gems bring bold verdancy to your look! This stylish necklace features a sizable station of 50.00 ct. t. w. oval emeralds in 18kt yellow gold over sterling silver. Cable chain includes a 2" extender. Textured and polished finishes. Lobster clasp, emerald necklace. Emerald birthstones are the perfect gift for May birthdays. Green Oval Necklace For Formal Occasions, Formal Green Oval Necklace, Luxury Green Oval Necklace, Green Necklace With Gemstone Accents, Elegant Formal Cabochon Emerald Necklace, Elegant Formal Emerald Cabochon Necklace, Green Fine Jewelry Necklace For Formal Occasions, Classic Green Gemstone Necklace, Green Emerald Cabochon Necklaces