Mikimoto 18ct yellow white and rose gold akoya cultured pearl 002ct diamond clover ringpr1407dc in 1893 kokichi mikimoto succeeded in creating the worlds first cultured pearl and ever since his love for these pure lustrous gems of the sea has been his motive behind the brand of mikimoto he is now world renowned as the primary producer of the finest quality cultured pearls and a world leader in sophisticated and feminine pieces of jewellery for as long as the brand has been founded elegant