Alpha Xi Delta Sorority Rhodium Crystal Post Earrings Jewelry Sister Rush Gift Alpha Xi Delta licensed earrings. Polished rhodium plated greek symbols and clear crystals with hypo allergenic ear posts. Rhodium is highly resistant to tarnish and makes a great finish for jewelry you want to wear every day. Charms are approximately 3/8" tall by 3/8" wide. Perfect Rush gift! Get a pair for your big or little sis! Be sure to check our other listings for the matching necklace!