The all-nacre Biwa pearls formed in colors unseen in saltwater pearls. Almost instantly appealing, their lustre and luminescent depth rivaled naturals because they, too, were pearls throughout.

Organic materials like pearls and resin, sea-inspired shapes ... An easy way to add a pop of color. I love a beaded earring ...

Narrator: That's Tom Moses. He's a gemologist at the Gemological Institute of America where he oversees diamond grading, colored stone identification, and pearl identification. He says that part ...