Milgrain is actually tiny metal beads,sometimes individually applied in rows along the edge of the metal. Most milgrain uses precious metals like gold or platinum, but the same effect can be created with silver and other metals as well. Milgrain is the tiny metal beads that can be applied to the edges of jewellery. In general, milgrain is applied to the edges of jewelery. In general, milgrain is applied to jewelry in oder to give it a more rustic and vintage feel.