Ever felt the need to spend $250k on nail polish? No, we haven’t either; but if the fancy took us, luxury jeweler Azature has something for us. The ‘Black Diamond King‘ polish is the most expensive nail polish in the world, coming in an an eye-watering $250k, containing 267 carats of black diamonds. The jeweler wanted to transfer the luxury and quality of their jewelry into a nail polish. The effect is that of a black glitter nail, and just in case this one is a little out of your price range, there will also be an ever so slightly cheaper version for $25 to be sold at Fred Segal in Los Angeles.