JOTW 10k Yellow Gold 2mm Byzantine Chain - 18" 20" to 30" Available (CP-Q1O8-S2EZ) Choose Between an 18", 20", or 24" Necklace! The 18 inch 10K Gold Necklace Weighs 5.26 Grams. The 20 Inch chain weighs 5.86 grams. The 24 Inch 10K Gold Necklace Weighs 6.93 grams, 30 inch = 8.6 grams. Ships from USA, Guaranteed!