Wear as a long single strand, or double up for twice the drama! 30-inch rhodium-plated sterling silver necklace features 13 cubic zirconia stations. Cubic zirconia stones measure 1.4 and 2mm. ABOUT RHODIUM FINISH: A rhodium finish is plated over other metals to make it non-tarnish, and is a hard-wearing, scratch resistant metal - the same metal used to plate white gold! Rhodium is more expensive per ounce than gold, platinum, or palladium!