Mikimoto 18ct Rose Gold Diamond White Akoya Pearl Stars Ring, PRH 5470D 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 exquisite Mikimoto ring features an array of white Akoya cultured pearls, ranging from 5.25-6.75mm in size, in an intricate and eye-catching starry night sky design. The ring is embellished with 0.09cts of sparkling brilliant cut diamond which adorn the 18ct rose gold setting. The ring comes beautifully packaged in a unique Mikimoto presentation box with certificate of authenticity.