With a fresh shape, style, and color palette, these arch earrings feature natural Peruvian opals that are found only in the Andes Mountains in South America. A truly unique stone, Peruvian opals are also believed to promote spiritual healing and enhance communication with friends and family.  14k Gold-filled Opal size: 4.2x 4.3mm Post back earring closure Handmade in Nashville, TN CARE: To keep your Peruvian opal jewelry looking its best, we recommend cleaning it regularly with warm soapy water and a soft brush. Avoid exposing your opal to household chemicals and extreme heat, as this can cause damage to the stone.