The 4 types of pearls are — Tahitian South Sea, White & Golden South Sea, Japanese Akoya, and Freshwater. In this article, we’ve listed the 4 kinds of pearls, their history, and what grades they come under. The 4 grades are A, AA, AAA, and AAAA. They’ve been grades based on their surface, lustre, and shape.
Infographic by – The Pear Source