WordNet sense 1 (small and round and shiny like a shiny bead or button):

beadlike, buttonlike, buttony

WordNet sense 2 (emitting or reflecting light readily or in large amounts):

bright

WordNet sense 3 (covered with beads or jewels or sequins):

bejeweled, jeweled, sequined, spangled, beaded, bejewelled, bespangled, gemmed, jewelled, spangly

WordNet sense 4 (provided with something intended to increase its beauty or distinction):

adorned, decorated