Jewelry Design Eastern Blocks Concrete Jewelry by Gerda Liudvinaviciute Eastern Blocks is a concrete jewelry collection inspired by Eastern European panel blockhouses. The collection includes necklaces and earrings that follow the shapes of prefabricated apartment buildings. Concrete is used because the material is light, non-allergenic and not easily broken. Each piece starts as a three-dimensional drawing, followed by prototypes and silicone molds for casting. The finished concrete parts are then joined with silver and leather. The collection invites a fresh look at Eastern European architectural heritage.