Earrings by John & Dawn Field These Zigzag halved earrings are made from sterling silver and they feature one of our wonderful, lab. grown blue opal triplets set in a brass bezel. They are slightly domed and they measure 30mm in diameter when the halves are together.We have a selection of ten other stones to choose from. These are, Amber, Amethyst, Pink corundum, Garnet, White moonstone, Blue spinel, Green spinel, Red and blue lab. grown opal triplets and Turquoise. Please select your favourite stone from the 'Finish' drop-down menu. Features Primary Material : sterling silver Other Materials : brass and stones Length (mm) : 50 Fitting Type : Continuous Hoop Dimensions (mm) : 30 when together One of a Kind : No Metal : sterling silver Gems : man-made opal triplet Hallmarked : No Wire Material : sterling silver Cleaning InstructionsThese Zigzag halved earrings have been finished with a clear, protective, anti-tarnish coating.