Hidden Gems is for those who expect more, and give more in return. For those who want to say more. For those who live intensely and love intensely. We offer these in a range of gemstones, including most birthstones. Details 18 karat yellow, rose or white gold Our signature ethical gold: mercury-free and mined by indigenous women who are paid more than the international gold price Made to order in 8 to 12 weeks Hidden Gems Ring in Gold Our clients have bought these stacking rings as engagement rings, wedding bands, push present, birthday gifts and more and more moms stack them as mothers' rings to celebrate motherhood and represent their children.  This ring has a slightly loose fit due to the round band, we recommend sizing down by around a quarter size You'll be purchasing one gemstone ring in the size and metal (18 karat yellow, white or rose eco-gold) of your choice.  What's a birthstone? A birthstone is a gemstone that represents someone's month of birth. Not sure what your birthstone is? January = Garnet February = Amethyst March = Aquamarine April = Diamond May = Emerald June = Pearl or Moonstone July = Ruby August = Peridot or Spinel September = Sapphire October = Opal or Tourmaline November = Citrine or Topaz December = Turquoise, Tanzanite or Zircon This design is part of the Hidden Gems collection, which features birthstone rings, necklaces and earrings to stack and mix and match the birthstones of your beloved ones: your own birthstone ring, the month you met your lover, to celebrate your firstborn or always keep your grandchildren near your heart. We're making this for you, from scratch As your ring will be made to order, there is a production time of 8 to 12 weeks. The gold wedding band is not included, but can be purchased separately here. You'll receive photos of your ring once it's done, to make sure it's just perfect and we’ll keep working on the piece until you are truly, madly, deeply in love with it. Then, and only then, will it leave our studio and make its way home to you. Looking for a ready stock hidden gems ring? We've got a rough opal and a rough emerald ring available in 18 karat rose gold. Our signature ethical gold We use 18 karat eco-gold, which is mined and processed with traditional, mercury-free low-impact practices by indigenous Dayak women in Central Kalimantan, Indonesian Borneo, who receive fair pay. Our white gold is rhodium plated. Need some more help? Our customer happiness team is pretty awesome! Email them or use the Contact form. This rough gemstone ring looks fabulous when stacked with any ring from the Hidden Gems collection.