Protection of Eye by charlotte BY CHARLOTTE 18" Signature Chain Necklace Signature Chain Necklace, Classy jewelry, Simple jewelry Signature chain 14k yellow gold 18 Artofit Men's Box Chain Necklace in 18K Yellow Gold, 2.7mm David Yurman UK Tiffany and Co. 18 Karat Yellow Gold Paper Clip Chain Link Necklace at. BY CHARLOTTE 18" Signature Chain Necklace Our fine 14k Gold 18" Signature Chain Necklace is the perfect chain to adorn your most treasured 14k gold pendants. Keep it simple and meaningful with a single 14k birthstone pendant or layer with multiple pendants to create your story of love. PRODUCT DESCRIPTION Pendants sold separately. We suggest a maximum of 3 pendants per necklace. Length: 18 inches; adjustable to 16 inches. Chain thickness: 0. 9mm.