Cost: $500,000 (Estimated Value)
Date: March 2007 

Lil Jon's "Crunk Ain't Dead" chain weighs 2.3 kg and has 3,756 diamonds in it. The legendary jewel holds the record for largest necklace pendant ever, and that's why every time he wears it, he has to hold it in his hands. Is it worth it? Sure, but that's some serious neck pain.