Star of David on a terracotta, round shaped concrete pendant with a metal necklace by Stef.co

Maybe you think of concrete as a raw and industrial material, but through processing it becomes smooth and exclusive.

Stef.co concrete jewelry is a Stefania Szilagyi's little manufacture, based on a tiny tropical island in Thailand, Koh Tao.

Her pieces of jewelry formed by simple geometric clean lines and often combined with other materials like metal, glass and silicone.