Others by John Field These small asymmetric ear studs are made from sterling silver. One ear stud features a white moonstone and the other has an embossed heart shape made from a stencil that has been designed by us.We offer twelve different gemstones to choose from, which are, Amber, Amethyst, Pink corundum, Garnet, Lapis lazuli, White moonstone, Blue spinel, Green spinel, Man-made Opal triplets nos. 3, 6, 8, Turquoise. Please choose your favourite gemstone from the 'Finish' drop down menu above. Features Primary Material : silver Other Materials : brass and moonstone Dimensions (mm) : 10x10x1 One of a Kind : No Metal : silver Gems : moonstone Hallmarked : No Cleaning InstructionsThese little mis matching earring studs are coated in a protective layer which helps to prevent tarnishing.