14k Polished With 1inch Ext. Necklace - 18 Inch - 4.1 Grams in 14k Yellow Gold - Charm/Element Width: 26 mm - Width of Item: 1 mm - Charm/Element Length: 18 mm - Length of Item: 18 in - Chain Length: 18 in - Chain Width: 1 mm - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations.