Mikimoto M Collection 18ct White Gold Diamond White South Sea Pearl Pendant, PPA 1803NDW.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. 12.5-13.00mm White South sea cultured pearl with 0.25ct of diamonds, set in 18ct white gold. The necklace will arrive beautifully packaged in a unique Mikimoto presentation box with certificate of authenticity.