The history of natural pearls
 
Natural pearls are the product of a mollusk’s natural defensive reaction against the invasion of a foreign object, which it encapsulates in the tissue that forms mother-of-pearl. This coincidence of nature is extremely rare, which is why natural pearls have always been so precious. They were first recorded in China more than 4,000 years ago. Natural pearls enjoyed a peak in the Roman Empire, in which they signified luxury and social standing. In the Middle Ages they filled the treasure troves of Spanish and Portuguese conquerors, and adorned the nobility and the clergy. Artists, too, were inspired by the jewel of the sea.