Cost: $16,000,000 

Money May reportedly bought his fiancee, Shantel Jackson, a $16M, 27.64-carat diamond necklace. Thanks for setting the bar, Floyd. While the rest of us shamefully peruse the clearance case at Zales, you spend Chris Brown's entire net worth on a single piece of jewelry. Our girls are going to love this sterling silver "Infinity Loop Ring" after reading this story. We hope he makes her sign a prenup.