Jewelry Trends Sterling Silver Created Opal and Purple CZ Crescent Post Earrings .925 Sterling Silver with a highly polished rhodium plated finish Adorned with multiple lab created blue opals; Approximate stone measurements: 1.5 mm wide x 6.4 mm long Accented with purple cubic zirconia stones; Approximate stone measurements: 5 mm wide x 5 mm long Earring dimensions: 9.7 mm wide x 24.8 mm long Clasp: Butterfly