ARE FRESHWATER PEARLS REAL PEARLS?

A freshwater pearl necklace at forty-two euros invites a certain scepticism, and the scepticism is fair. Pearls have spent the best part of a century being sold as the most expensive thing a woman could own, so a price that sits below dinner for two reads, at first glance, like a catch.

There is no catch. The pearls are real pearls, grown inside a living animal, made of exactly the same substance as the ones behind the vitrine at an auction house. What has changed is not the material but the economics of how it reaches you, which is worth understanding properly. For the wider picture, see our complete guide to freshwater pearl jewellery.

Yes, They Are Real Pearls

A pearl is defined by what it is made of and how it forms, not by the water it grows in. Freshwater pearls grow inside freshwater mussels, farmed in lakes and rivers, the majority of them in China. The process begins when a technician opens the shell and inserts a small piece of mantle tissue from a donor mussel.

From that point, the animal does the work. The mussel forms a pearl sac around the graft and begins to secrete nacre over it, layer after microscopic layer, for anything from one to four years. Nacre is aragonite crystals bound by conchiolin, an organic protein, and it is the same material a saltwater oyster produces.

Nothing is added afterwards. No coating, no bead pretending to be a pearl, no clever finish applied in a factory. The pearl that comes out of the mussel is the pearl that ends up on the chain. That is the whole of the answer, and everything else is a question about price rather than authenticity.

Freshwater Pearls Versus Cultured Pearls

This comparison comes up constantly, and it rests on a misunderstanding. Cultured is not a type of pearl. It is a method: a pearl that formed because a human being gave the mollusc a reason to start, rather than waiting for a grain of chance to do it. Freshwater pearls are cultured pearls. So are Akoya, Tahitian and South Sea.

The opposite of cultured is not fake. It is natural, meaning a pearl that formed with no human involvement at all, and those have been commercially extinct since the pearl beds were exhausted in the early twentieth century. When one appears, it appears at auction. Nobody is selling them alongside a summer collection.

The genuine opposite of a real pearl is an imitation: a glass or plastic bead dipped in a lacquer made from fish scales, or from something less romantic. That is a different object with a different life, and it has its own distinguished history: the most photographed pearl necklaces of the twentieth century, worn by Audrey Hepburn and by Jacqueline Kennedy, were both imitation, as we set out in famous pearls in history. The Elizabeth Pearls Necklace uses cultured pearls on an adjustable golden chain, which places it firmly in the first category.

Sofia Godinho

Why Freshwater Pearls Cost What They Do

Two things bring the price down, and neither of them is quality of substance. The first is abundance. A single freshwater mussel can be grafted in many places along its mantle at once, and may yield twenty or thirty pearls in a cycle. An Akoya oyster carries one, occasionally two. The arithmetic of supply follows from there.

The second is shape. Because most freshwater pearls are grown from tissue rather than around an inserted bead, they are solid nacre the whole way through, which is a genuine advantage in wear. But solid nacre grows as it wants to grow. Perfectly round is the exception, and round is what the traditional market pays for.

So the irregular ones, the ovals, the drops, the softly lopsided baroque pearls, arrive at a fraction of the price of their symmetrical siblings while being made of more nacre, not less. What you are buying at this price is a real pearl that declined to be a sphere. The Aline Pearls Necklace is built on exactly that logic, minimal enough to let the shape speak.

Honesty requires one more note. Most freshwater pearls on the market are cleaned, and many are lightly bleached or polished to even out colour before they are drilled. This is standard practice across the industry, including at prices many times higher, and it does not change what the pearl is. The nacre is still the nacre the mussel made.

Freshwater Versus Akoya: What Actually Differs

Akoya pearls come from a small saltwater oyster, cultivated chiefly in Japan, and they are bead nucleated. A round shell bead goes in and the oyster coats it, usually for less than two years, leaving a nacre layer under half a millimetre thick. The result is near perfect roundness and a cool, sharp, almost mirrored lustre.

Freshwater pearls read differently. The glow is warmer and softer, closer to satin than to glass, and it comes from depth rather than from a thin bright skin. Colour runs through white, cream, peach and lavender, all of it natural to the mussel. And because there is no bead underneath, the nacre cannot wear through to reveal one.

Neither is better in the abstract. An Akoya strand is a formal object with a formal price. A freshwater pearl earring such as the Diana Pearl Earrings, a single drop against the skin, is something you put on without ceremony on a Tuesday, and that difference in use is really what separates the two categories.

Are Freshwater Pearls Valuable?

It depends entirely on what value means to you. As a financial instrument, no, and any brand that tells you otherwise is selling a story. Jewellery at this price is not an investment, and it does not need to be. Its return is measured in how often it leaves the drawer.

Within the category, though, quality varies enormously and is priced accordingly. Lustre is the first thing to look at: a good pearl reflects a light source with a defined edge rather than a vague blur. After that comes surface cleanliness, then how well the pearls in a piece match one another. Large, round, high-lustre freshwater pearls now sell for more than modest Akoya.

What makes a piece worth its price at the accessible end is honest construction around the pearl. The Anine Pearls Bracelet pairs freshwater pearls with a premium chain and is made in Portugal, and the rest of the pearl collection follows the same reasoning: real nacre, a golden finish from 24K gold plating, nothing overstated.

Checking, And Keeping

If you want to verify a pearl in your hand, the oldest test still works. Draw it gently along the edge of a tooth. Real nacre feels faintly gritty, because it is built from crystal platelets. An imitation feels glassy and slick. Real pearls are also cool to the touch for a moment when you first pick them up, and never identical to one another.

Keeping them is mostly a matter of order. Pearls go on last, after perfume and hair, and come off first at the end of the evening. Nacre is porous and does not care for alcohol, chlorine or acid. A soft cloth after wearing is enough, and the golden chain they hang from appreciates the same restraint, as set out in our guide to caring for your jewellery. Summer asks harder questions, and we answered them in can you wear pearls in the water.

The scepticism you brought to the price was the right instinct applied to the wrong question. The pearl is real. It was made slowly by an animal, out of the only substance a pearl has ever been made of. It simply had the good sense to be born in a river.