Collector's item ring in grey gold with a 7.5 carat aquamarine cut emerald set with 12 aquamarine stones and blue sapphires. Boucheron, around £16 500www.boucheron.com Le Parfum des Merveilles (30 ml), in a limited edition perfume bottle by Cristalleries Saint-Louis (only 450 availabole)Hermès, around £730Available exclusively at Hermès and in selected shops. Photo : Boucheron