When Nikos Koulis decided to turn his hand to engagement rings, we knew we were in for a treat. The Greek jeweller’s avant-garde design flair is evident in jewels that are a delightfully contemporary twist on the traditional diamond solitaire. The monochrome combination of white diamonds and black enamel is broken up with a colourful pop of emeralds in this unique, yet stylish, engagement ring. Renowned for his colourful edgy chic, Nikos Koulis counts celebrities such as Daphne Guinness and Jennifer Lopez among his fans. Simply entitled Oui, an engagement ring from this collection is bound to elicit an affirmative response.