Why Imitations Catch So Many People Out

Modern imitation pearls are not the crude plastic beads of a generation ago. Many begin as a glass or shell bead, dipped in a lacquer blended with fish-scale essence or a synthetic substitute, then dipped again and again until the surface gleams convincingly. Others are cut from mother-of-pearl shell and sold as pearls, which is a relative of the real thing but not a pearl at all. Because makers are chasing the genuine article, the best imitations look perfectly plausible in a photograph or under flattering shop lighting. The differences tend to surface in weight, warmth and texture — precisely the qualities a camera cannot capture. You do not need a laboratory or an expert's loupe. You need good daylight, a few minutes, and a willingness to handle the piece properly.

The Tooth Test: Simple and Remarkably Reliable

Gently rub the pearl across the flat front surface of your incisors. A real pearl feels faintly gritty or sandy, like fine powder beneath a fingernail. That sensation comes from nacre, the crystalline layers of aragonite a mollusc deposits around an irritant; the overlapping plates create a slight friction that a smooth bead cannot mimic. An imitation glides across the tooth, almost slippery, with none of that resistance. Test on the side of the pearl rather than a sharp edge, and never bite down. If you are holding a strand, rub two pearls together near your ear: real pearls give a faint, dry, powdery squeak and a light grating feel, while imitations click or slide in silence. Baroque and keshi pearls, with their irregular shapes, make this check trickier — find the smoothest spot you can and judge from there.

Weight, Temperature and the Feel in Your Hand

Real pearls are dense. A genuine pearl of a given diameter feels noticeably heavier than a glass or plastic bead of the same size, and the difference is easiest to spot when you rest two strands across your palm one after the other. Temperature tells a story too. Real pearls feel cool as they meet your skin, then slowly take on your body warmth and hold it. Glass imitations feel cold, then slip back to cool; plastic feels tepid or room-temperature from the outset and never quite warms in the same way. Drape matters as well. Lay a strand flat and watch how the pearls sit against one another. Good pearls hang with a soft weight and small shadows between them, while lightweight imitations often lie flat, even and unnaturally uniform.

• Weight: compare size for size against a pearl you trust.
• Warmth: cool at first touch, then gradually warming.
• Drape: a gentle, supple weight rather than a stiff or weightless line.

Reading the Nacre, Lustre and the Drill Hole

Real pearls are built in layers, and those layers show. Turn one under a lamp and look at the surface closely: you should see minute irregularities, faint blemishes, a slight unevenness of tone. Lustre on a real pearl looks deep and soft-edged, as though light is coming from within rather than bouncing off a coating. Imitations tend to look glassy and mirror-flat, often with an oily rainbow sheen, and their uniformity is the giveaway — every bead identical, every surface flawless. Check the drill hole too. On a real pearl it shows concentric rings of nacre, a slight lip where the layers meet the opening, and sometimes a little flaking. On an imitation you may see a bead core, a sharp edge where the coating stops, or a chip that reveals plastic beneath.

• Lustre: deep, soft, glowing from within, not a hard glassy reflection.
• Surface: small natural imperfections, subtle variation between pearls.
• Overtones: gentle pink, cream or green hints that shift with the angle.
• Drill hole: visible layers and a slight lip, rather than a sharp cut edge.

Caring for Pearls Day to Day

Pearls are soft — around 2.5 to 4 on the Mohs scale, softer than a fingernail is hard — and they are porous, which means they absorb what they touch. Put them on last, after perfume, hairspray, moisturiser and sunscreen have dried, and take them off first at night. Keep them away from chlorine, vinegar, lemon juice, household cleaners and silver dip. Never put pearls in an ultrasonic cleaner. A quick wipe with a soft, slightly damp cloth after wearing, followed by a dry cloth, keeps the nacre clean without stripping it. Store them in a soft pouch or a lined box rather than a sealed plastic bag, which traps moisture and can dull the surface. If a strand is worn often, have it restrung on silk with a knot between each pearl every year or two — the knots protect the pearls from rubbing and stop a single break scattering them across the floor.

Rustic-Inspired Styling with Pearls

The rustic look is forgiving, which suits pearls beautifully — especially the baroque, keshi and coin shapes whose irregular surfaces some buyers once dismissed. Lean into texture and matte finishes. Layer a short strand of cream freshwater pearls over an unbleached linen shirt, or wear a single large baroque pearl on a leather cord with a chunky knit. Oxidised silver, brass, hammered metal, raw wooden beads and waxed cotton all sit happily alongside pearls without competing. Earthy tones work well: grey, champagne, peacock and soft pink pearls pair naturally with tweed, raw silk, denim and undyed wool. For a more polished take, knot a longer strand twice and let the ends fall over a plain jumper. Embrace the blemishes — a rustic setting celebrates the pearl that grew that way, rather than pretending it came out of a machine.