06/01/2026
Pearl – one of June’s birthstones – is perhaps the best-loved gem of all time. Natural pearls sometimes form when an irritant enters a mollusk. The mollusk secretes layers of an iridescent substance, called nacre, to surround the irritant. These layers break up light in a way that creates pearl’s unique luster and orient. Natural pearls are rare, but today, cultured pearls are farmed in large quantities in many countries around the world. The most popular pearl types include: South Sea, Tahitian, akoya and freshwater. Learn more here https://www.gia.edu/pearl