Multi color, a perfect match for any and all outfits! Rhodium plated sterling silver rainbow CZ earrings are 14.3mm long. 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!