Mikimoto 18ct White Gold 0.12ct Diamond 7.5mm Akoya Pearl Necklace. PPH 5307D W. Over a century ago, Kokichi Mikimoto succeeded in creating the world's first cultured pearl. His quest for perfection and his love for these pure, lustrous gems of the sea were the guiding forces that built the house of Mikimoto. This elegant Mikimoto necklace features an exquisite white Akoya cultured pearl 7.5mm in size which sits gracefully on an 18ct white gold chain. The necklace is further embellished with 0.12ct brilliant cut diamonds adding a luxurious sparkle and would be a beautiful addition to any jewellery lovers collection. The necklace comes beautifully packaged in a unique Mikimoto presentation box with certificate of authenticity.