1) Bejeweled pendant 2) French word used in English 3) Lavaliere 4) Lavalliere 5) Necklace pendant 6) Pendant 1) Lavaliere 2) Lavalliere 
A lavalier is an item of jewelry consisting of a pendant, sometimes with one stone, suspended from a necklace. The style was popularized by the Duchesse de la Vallière, a mistress of King Louis XIV of France. A lavalier can be recognized most for its drop (that usually consist of a stone and or a chandelier type of drop) which is attached to the ...
A long pendant with a dangling stone meant to hang from a necklace
A type of (usually radio) mic, often called a tie-clip although they are probably best concealed above the hairline or behind the ear.