Gem beads are attractive objects used not only for bodily ornamentation but also to decorate royal palaces and religious places in ancient time. The Jetavanaya Bead collection contains considerable amount of natural gem beads which are made up of gems coming from six main gem families found in Sri Lankan gem fields. The most common gem beads are made up of Garnet and Quartz family gems while Corundum, Beryl and Feldspar beads are somewhat rare in the collection. Having both unfinished beads and raw materials give an idea that beads had been made locally. The different shapes, well polished facets and sharp edges of beads evidence the advance ancient technology of bead making.