The name Keshi comes from the Japanese word for poppy seed.  Originally they were small "chance" pearls produced while the main cultured pearl was forming.  Now Keshi usually refers to larger "chance" pearls (up to 10mm), created in giant Pinctada oyster shells. Often highly iridescent, their shapes are intriguing and irregular (baroque).

(Japan, Indonesia, French Polynesia, Thailand, Mexico, Tonga and Australia) Unlike the majority of cultured pearls, Mabe  are "blister" pearls that grow attached to the inside shell of the oyster (Pteria penguin - the black-winged pearl oyster, and others).  This creates their distinctive flat base and semi-sphere shape.  Also known as dome, button or assembled pearls, extra support is added to the pearl structure after removal from the oyster.  They are today's "half-pearl", 20-25mm in diameter.

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Pearl History 101

History of Pearls | A Fabulous Past in Fashion | The First Cultured Pearls | About Pearls

 

Cultured Pearl Types

Akoya | South Sea | Tahitian | Keshi & Mabe | Freshwater

 

More About Pearls

Lets Talk More About Pearls | How To Wear Pearls | Care For Your Pearls