Inspired by the art of jewellery-making, Guerlain’s Stunning Gems collection is defined by a line-up of intensely pigmented lipsticks, housed in faceted, diamond-like bullets that transform the art of applying lipstick into a truly glamorous affair. All you have to do is start by choosing your lipstick shade – sold separately – and select your favourite diamond-faceted case; this one’s covered in crystals for a sparkling finish.