Pearls, a miracle of nature—and June’s luminous birthstone

Did you know June’s birthstone, the pearl, is the only gemstone created by a living animal? While traditionally white or cream, recent years have seen an uptick in black, gray, silver, green, pink, blue, and iridescent pearls.

Natural vs cultured

Natural pearls occur when a microscopic irritant (like sand) causes them to form in certain mollusks. Cultured pearls began in the 20s, when natural pearl reserves declined. They’re formed when a small bead or a piece of tissue is inserted in a mollusk. The coating, called “nacre” (mother of pearl) continues to build up until the pearl is formed. 

Why are most pearls cultured? As National Geographic states, “a natural pearl of value is found in less than 1 in every 10,000 wild oysters.”

Types of pearls

• Akoya: The most common type, from Japan and China. They’re often fairly small, white, or off-white.
• South Sea: Mainly from Australia, Indonesia, and the Philippines (and very rare). These are the largest pearls and are often white, cream, golden, or soft pink.
• Tahitian: From the islands of French Polynesia. These pearls are the darkest, ranging in color from blue, purple, green, grey, and black.
• Mabe: These pearls actually grow in the mollusk, are flat, and are often used for pendants, earrings, and rings.
• Baroque: These irregularly shaped pearls are becoming increasingly popular.

There are also freshwater pearls, cultured in freshwater lakes and ponds. China and the US are the leading sources.

Healing beliefs about pearls

Ancient Chinese believed that pearls would protect wearers from fire and fire-breathing dragons. In Europe, they symbolized modesty, chastity, and purity. More recently, healing beliefs range from increasing fertility, aiding eye ailments, and helping lung health.

Taking care of your pearls

It’s ironic that, while pearls grow in the water, H2O isn’t a friend when you’re wearing them.

• Don’t wear pearls in the water, at the beach, or when you’re working out.
• Pearls can fade, so don’t wear them if you’re going to be the sun for an extended period of time.
• Pearls are soft. To avoid scratches, store them away from other pieces of jewelry. A soft bag or cloth can protect them.
• Don’t try to clean your pearls with any detergents or chemicals. A soft, damp cloth is enough.
• To clean off perfume, skin oil, or dirt, wipe your pearls with a soft cloth after wearing.
• If you wear your pearls often, consider having them restrung—you don’t want to go on a “pearl hunt” if the stringing gives way.

Enjoy the luminous pearls in your life. And to quote Jackie Kennedy, “Pearls are always appropriate.” And to value your heirloom pearls (or your own strands) call me at 617-304-0174 to get an updated appraisal to protect against pearl “oopsies.”

Luminously yours, Aimee