Bijou

Etymology
From bijou:

Noun

 * 1) jewel
 * 2) a piece of jewelry, a trinket

Adjective

 * 1)  small and elegant

Thesaurus
anklet, armlet, bangle, beads, bracelet, breastpin, brooch, chain, chaplet, charm, chatelaine, circle, coronet, crown, diadem, earring, fob, gem, jewel, locket, necklace, nose ring, pin, precious stone, rhinestone, ring, stickpin, stone, tiara, torque, wampum, wristband, wristlet