I love these concrete rings by Studio 22. Having a background in architecture makes me fond of building materials in general, especially when used for non-architectural purposes. Studio 22′s concrete rings were sold as part of designboom’s mart during Tokyo Designer’s Week this year. They will soon be sold online exclusively at designboom’s shop.

I can’t mention concrete jewelry without talking about Konzuk – check out their gorgeous work, too!

Via We Made This.