Real, Freshwater or Shell? A Straight Guide to Pearls in Silver Jewellery

If you're shopping for a pearl pendant or pearl earrings, the labels can be confusing — 'real pearl', 'freshwater pearl' and 'shell pearl' often get used as if they mean the same thing. They do not. Here is what each one actually is, and how to tell them apart before you buy.

The four categories, in plain terms

Natural pearls form by pure chance in a wild mollusc, with no human help at any stage. They are vanishingly rare today and are not what you will find at everyday jewellery prices — genuine natural pearls belong to a different market altogether.

Cultured freshwater pearls are real pearls, grown inside a freshwater mussel with a small human-inserted irritant to start the process, then harvested once the mussel has done the rest. This is how the great majority of real pearls sold today are produced, and it is a genuine, grown pearl.

Shell pearls start as a bead cut from mother-of-pearl shell, then coated in layers to give the same lustre. A shell pearl is a real, legitimate material — it is simply not a pearl that a mollusc grew.

Imitation pearls are glass or plastic beads with a coating sprayed on, carrying no shell and no nacre at all.

What we actually use

HighSpark pearl jewellery is made with 5A+ cultured freshwater pearls and premium shell pearls — two different materials, used across different pieces, and we do not blur the line between them. Neither is presented as a natural pearl, and each listing tells you plainly which one you are buying.

At-home checks, and their limits

• The tooth test: gently rub the pearl against the edge of a front tooth. A real pearl (natural or cultured) feels faintly gritty; an imitation feels perfectly smooth, like glass.
• Surface irregularity: hold it under strong light and rotate it slowly. Genuine pearls show tiny natural irregularities; imitations look unnaturally uniform.
• Weight: shell and cultured pearls both have real heft; glass imitations often feel too light.
• Drill-hole edges: a clean, slightly worn edge suggests a coated or grown pearl; a sharp plastic edge suggests imitation.

None of these checks is conclusive on its own — they narrow the possibilities, they do not prove it. That is exactly why knowing what you're buying, from a seller who tells you plainly, matters more than any home test.

Caring for pearls is different from caring for silver

Pearls are soft and porous, so they need their own routine. Put on perfume, deodorant and hairspray first, and the pearl piece last — never the other way round. Never soak a pearl piece to clean it; wipe it with a soft, dry cloth after wearing instead.

The silver underneath

Every HighSpark pearl setting is 925 sterling silver, finished with R-Coat™, our protective anti-tarnish coating, and it is nickel-free, cadmium-free and lead-free — so the setting is as safe for skin as the pearl is genuine.

Start with our silver pearl collection, or go straight to pearl earrings if studs are what you're after — pearl settings also show up across our wider pendants range.