This is in excellent condition, and the chain measures 18 1/2", marked NY Co 14k on the clasp, and the cross measures not including the bale 1 1/4", marked with hallmark A.P.S, a figure of some kind, what looks like a D on its side, what looks like a G or 6 on its  side, and numbers 375 to indicate that the cross is 9k gold.  The chain and cross total weigh 3 grams.  Please look closely at my photos for details.  Item 7413