17 Dazzling Star Sparklers

These gems have five Cs: cut, color, clarity, carats and celebrity! See the big bling worn by Hollywood's most engaging women

ASHLEY TISDALE

Rocker Christopher French popped the question to Tisdale in August 2013 atop one of New York City's finest buildings, and gave her an even finer ring to go with the romantic gesture. The sparkler really sparkles, because it's a multiple-carat cushion-cut diamond surrounded by a halo of small diamonds, set on a platinum band … covered in diamonds.