Oui is Nikos Koulis’ most celebrated collection. It has won the Couture Design Award for two consecutive years; in 2015 in the Bridal Category and in 2016 in the Haute Couture Category; evolving the collection’s designs and maintaining his innovative signature style with the black enamel element and exceptional quality of stones. It is constantly enriched with new styles, in stunning combinations with special cut stones, one-of-a-kind pieces and additional stories deriving from the collection's core.