Tera Clay is a Dutch family-run maker brand based in Zaltbommel, specialising in polymer-clay jewelry and tools for clay artists. The business began with handmade polymer-clay earrings and has since expanded into a large range of clay cutters, texture tools, molds and other supplies for jewelry makers.

Tera Clay's earrings are handcrafted in small batches, while its polymer-clay cutters are made in the Netherlands from 3D-printed PLA. The brand also develops digital cutter designs and other tools for polymer-clay artists.

Alongside its own products, Tera Clay operates a broad maker-supplies shop stocking polymer clay, jewelry findings, charms and other materials from third-party manufacturers. The manufacturing origins of these stocked products vary and are not consistently disclosed.