Every piece in this collection begins the same way: a natural rainbow moonstone, chosen by hand from a small parcel of rough, and a fine chain of matte sterling silver. What gives each one its sign is the coin. Each small silver disc is sandblasted matte, oxidized in its recesses, and laser-engraved with one constellation, star by star, so the sign sits on the coin the way it sits in the sky.

The stone itself refuses to repeat. Rainbow moonstone is a natural material, and its blue light moves differently in every cut, which means two people born under the same sign will still never wear the same bracelet. We think that is the point. A sign is shared with one twelfth of the world. The stone is not shared with anyone.

Below are the twelve signs. Choose yours to see the stones that carry it, each one numbered and one of a kind. Five of the signs also have a page of their own, on how the sign and the stone found each other and what it is like to wear.