Diamonds are a girl's best friend so it was no surprise to see Hollywood starlets rush to the red carpet for the launch of the Cartier Love Charity Bracelet. Let's get things started with Rihanna who lit the Empire State building in honor of Cartier Love Day. The singer is dripping in a jewel encrusted tiara, two Lotus rings, diamond stud earrings, a diamond dome ring, and a silk bracelet — all Cartier and all fabulous. Who else flaunted their bling? Click on the slideshow and find out!