JOTW Rhodium Plated Sterling Silver 2mm Rope Chain Necklace - All Lengths Available (Z5-4CRR-YWUQ) 925 Rhodium Plated Sterling Silver (This listing is for the darker colored Silver) Made in Italy - Nickel Free! 16" weighs 5.91 grams, 18" = 6.5 grams, 20" = 7.1 grams, 22" = 6.84 grams, & 24" = 7.1 grams. Great Quality Jewelry!