Are All Tahitian Pearls Black? and Other Pearl FAQ Answers

Natural pearls are formed when an irritant, such as a parasite, makes its way into a pearl-producing animal such as an oyster or mollusk. To protect itself, the animal coats the irritant in nacre—a combination of organic substances that also makes up what we call mother-of pearl. Over time, the layers of nacre build up around the intruder and eventually form the organic gem we all know as the pearl.

Cultured pearls are formed in the same way as natural pearls, with one big difference: they get their start not by chance, but deliberately, when man intervenes with nature. To produce cultured pearls, a skilled technician, called a nucleator, induces the pearl-growing process by surgically placing an irritant—a mother-of-pearl bead and a piece of mantle tissue, usually—into a mollusk. The animal is then placed back into the water and monitored, cleaned, etc. until the pearl is ready to be harvested.

The Chinese have been culturing freshwater blister pearls (pearls that grow underneath the mantle on the inside of the animal’s shell) since the 13th century, but Kokichi Mikimoto, a Japanese man, is credited with developing modern pearl culturing techniques. By the early 1920s, Mikimoto was selling his cultured pearls worldwide.

Natural pearls can be very beautiful, but due to overfishing, pollution and other factors, they are a rare find indeed. Thus, nearly all pearls sold today are cultured pearls. There are two main types: freshwater and saltwater. South Sea cultured pearls, Tahitian cultured pearls and akoya cultured pearls are all types of saltwater pearls. Cultured pearls of all types can be found in jewelry stores worldwide.

Are saltwater pearls better than freshwater pearls? It depends on who you ask, but many pearl experts today agree that freshwater cultured pearls can rival the beauty of their saltwater cousins. Due to improvements in culturing techniques, freshwater pearl farmers are producing beautiful, round, lustrous pearls that are a vast improvement over the wrinkled, rice-krispie-shaped gems that typified the freshwater pearl crop of the not-so-distant past.

Produced mainly in China, freshwater pearls are often nucleated, or implanted, with mantle tissue only (rather than a mother-of-pearl bead). Because they do not contain a starter bead, tissue-nucleated freshwater pearls are 100% nacre. This gives them a beautiful luster and a durable surface that won’t easily flake or peel to reveal the inner bead. By contrast, pearls that are bead-nucleated and harvested too soon often have only a thin coating of nacre that will flake or peel. This is a major problem: Unlike many other gemstones, pearls cannot be polished back to perfection.

Freshwater cultured pearls come in many beautiful natural pastel colors including cream, white, yellow, orange, pink and lavender. (Universally flattering lavender pearls are very popular right now.) White pearls are bleached to enhance their natural shine. Black freshwater cultured pearls are treated with dye or heat to produce their inky color.

Overall, freshwater pearls are more plentiful than other pearl types, thus they are generally more affordable.

Are South Sea pearls really golden? Yes. Pearls produced in the aptly named “gold-lipped” oyster (P. maxima) can be a gorgeous creamy yellow, referred to as “golden” in the trade. wedding photography studios, wedding brides karachi, seminar photography