From Rihanna’s opulent headpiece to Demi Moore's glittering green jewels, revisit some of the most statement-making ...

The chain is crafted from 18k rose gold with over 50 carats of white diamonds ... and features a stunning 200-carat green emerald to bring it all together. The big price tag is pocket change for ...

Art Deco Emerald and Diamond Brooch ... which is mounted in 18-karat yellow and white gold. The pendant hangs on a rope-style ...