10k 1.3mm Franco Chain Necklace - 18 Inch - 4.2 Grams in 10k Yellow Gold - Width of Item: 1.3 mm - Length of Item: 18 in - Chain Length: 18 in - Chain Width: 1.3 mm - Clasp /Connector: Lobster - Chain Type: Franco - Feature: Solid - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations.