Mikimoto 18ct yellow gold 55 6mm white grade a1 pearl braceletud 60707 k over a century ago kokichi mikimoto succeeded in creating the worlds 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 bracelet features white grade a1 cultured pearls 55 6mm in size which sit gracefully on an 18ct yellow gold chain embellished with a signature 18ct yellow gold m mikimoto cha