Mikimoto 18ct White Gold Diamond White Akoya Pearl Bubble Ring, PR 1408D 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 beautiful Mikimoto statement ring features a cluster of five white Akoya cultured pearls, ranging from 4.75-6.25mm in size, to create this unique bubble design. The pearls are further adorned with 0.07cts of sparkling brilliant cut diamonds, adding extra luxury to this piece. The ring is completed with a solid 18ct white gold band. This ring comes beautifully packaged in a unique Mikimoto presentation box with certificate of authenticity.