Made in Alberta, Canada These earrings start out as rough stone that is carved into small cabochons. The cabochons are prepped for settings and set in either gold, rose gold, silver (steel) or a black setting in your desired size. Please note the size is just the stone. The setting around will add 1-2mm in total size. The settings are all surgical stainless as their base metal. The coloured settings have been electroplated. The studs are all handmade in small batches using authentic gemstone material. We offer a lifetime warranty on all studs. Please contact me with any questions or concerns. Follow us on Instagram and Facebook: @earthandelmjewelry Orders in Canada with free shipping is sent with lettermail. It does not include a tracking number. If you would like to track your order, please pay for tracking at checkout. <3 Materials: black onyx, Surgical Steel.