Mikimoto 18ct Rose Gold 7mm White Akoya Pearl Square Framed Ring, PRH 333 Z. 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 unique Mikimoto ring features an exquisite 7mm white Akoya cultured pearl which is set within an 18ct rose gold square frame to create this feminine and modern piece. The ring is completed with a solid 18ct rose gold band, making it perfect for everyday wear.  This ring comes beautifully packaged in a unique Mikimoto presentation box with certificate of authenticity.