NinetyFour, London

In sync with the spirit of East London, this stylish jewellery boutique is more workshop than ostentatious designer store. Contemporary designers are well represented, including Simon Rees, Ann Black, Laure Lee and Lars Sture. It's usually open during the Columbia Flower Market on Sundays. Unfortunately, you can't call to check since there's no phone number - how quaint. The immense range of stock means you can buy a nipple or belly ring for a mere £15 or a wedding ring for thousands.