It is believed by some that an ancient fish-eating tribe, perhaps along the coast of India, initially appreciated the shape and luster of saltwater pearls, which they discovered while opening oysters for food. No one really knows who the earliest people to collect and wear pearls were.
Pearls are regarded as one of the most valuable gem materials because they do not require any processing and they come from the water showing full gloss, the desired luster. They have been used as adornment in jewelry for almost 6,000 years. The unique characteristics and rarity of pearls has been a major reason for their great value.