If you’re anything like us, you value beautiful jewelry, but only if it was made without undue harm to the environment. So we’ve rounded up 20 eco-pieces from around the world that are sourced sustainably and made from earth-friendly materials. From an uncut, diamond in the rough engagement ring to unpolished emerald rings, to a ring made from recycled cardboard and studs made from real sugar, our green jewelry gift guide is certain to suit every taste.