How much do you believe costs a diamond manicure? 

 Master manicurist Leighton Denny offers the insanely expensive "encapsulation" manicure from within Harrods's Urban Retreat Spa, one of the most posh in London. The $32,000 manicure includes 9-carats of real diamonds, affixed to a lucky girl's nails. It's reportedly a huge hit with Arab princesses, and once had a 175-deep waiting list. Not to be outdone, Cherish….Me, another London-based company run by Cherish Angula, offers the $51,000 Iced manicure, where a manicurist will travel to the customer anywhere in the world.

For those who don't mind applying nail polish themselves, there is the $250,000 'Black Diamond' nail polish by jewelry couturier Azature of Hollywood. Containing up to 267 carats of black diamonds, the nail polish was proudly worn by Kelly Osborne at the 2012 Emmy awards. At the time, she was widely criticized for wearing nail polish worth more than most people earn in a year. But don't worry, the company offers a $25 version for more budget-conscious consumers.