We love this sweet pine necklace. This pendant is plated in Rhodium and hung from an 18" sterling silver chain. It measure approximately a 1/2 in across. You're sure to love this new necklace just as much as we do! - Rhodium Plating, 18" Sterling Silver Chain. *Rhodium plating causes the jewelry to have a grey-silver appearance. It is hypo-allergenic, nickel free and will not tarnish.