Manufacturer · Fashion & Home Accessories
A mother-of-pearl button is a button cut from nacre – the hard, iridescent inner layer of the shells of certain marine and freshwater molluscs. It is a natural material, with no plastic, and has a characteristic pearly lustre that changes with the angle of the light. That is why the mother-of-pearl button is a classic choice for quality shirts, blouses and fine clothing.
Mother-of-pearl button: what the material is
Mother of pearl (MOP for short) is a biomineral. The mollusc builds it layer by layer from microscopic platelets of calcium carbonate (aragonite), bound together with an organic substance – conchiolin. It is precisely this layered structure that refracts light and creates the play of colour known as iridescence. The same material also covers the inside of pearls.
This structure also gives the mother-of-pearl button its practical properties:
- hardness and weight – the button is noticeably denser and heavier than a plastic one of the same size;
- cool to the touch – it feels cold, whereas plastic quickly takes on the temperature of the hand;
- a unique pattern – no two buttons are completely identical; slight differences in shade are a sign of natural origin;
- sensitivity to acids – calcium carbonate reacts with acids and bleach, so mother of pearl needs careful handling.
Which shells mother-of-pearl buttons are made from
Not every shell is suitable for buttons. A sufficiently thick wall is needed to cut a solid blank. The most used raw materials are:
- trochus – a cone-shaped sea shell, the most widespread raw material for shirt buttons; gives white to creamy nacre with a fine lustre;
- white mother of pearl from pearl oysters – from large oysters of the genus Pinctada; purer white, brighter and more valuable;
- black (dark) mother of pearl – from the black-lip pearl oyster, with deep grey, green and blue iridescence;
- river shell – from freshwater mussels; thinner, more matte and more affordable.
You will find more about the differences between them in a separate article on the types of mother of pearl. The raw material comes mainly from the Asia-Pacific region.
How a mother-of-pearl button is made
- Cutting – round blanks are cut from the shell with a tubular cutter. The best nacre is close to the edge of the shell.
- Splitting by thickness – the blanks are sorted and, if necessary, ground to an even thickness.
- Profiling – the face is shaped on a lathe: flat, with a recessed centre (the so-called “fish eye”) or with a rim.
- Drilling – two or four holes are drilled, or a shank is fitted on shank models.
- Polishing – the buttons are tumbled in drums with an abrasive medium until the face reaches a full lustre.
- Sorting – they are graded by colour and quality to achieve the most uniform look possible within the batch.
The face (the inside of the shell) is light and lustrous. The back, which comes from the outside, is often darker, sometimes with residual texture. This is not a defect but a sign of natural origin.
Sizes and shapes
Mother-of-pearl buttons are measured in lignes (L), where 1L = 0.635 mm. The most common sizes are:
| Size | Diameter | Typical use |
|---|---|---|
| 14L | ≈ 9 mm | button-down collar, cuff, babywear |
| 16L | ≈ 10 mm | front of a women’s blouse and shirt |
| 18L | ≈ 11.5 mm | front of a men’s shirt |
| 20–24L | ≈ 12.5–15 mm | cardigans, knitwear, dresses |
| 28–40L | ≈ 18–25 mm | jackets, coats, decorative accents |
There are models with two and four holes, with a shank, flat and domed. Thickness also varies – for a shirt, a button that is solid but not too thick is valued, so that it passes easily through the buttonhole.
Treatments and customisation
Besides its natural colour, mother of pearl can be dyed. The dye penetrates the upper layers while the iridescence stays visible, so a dyed mother-of-pearl button looks more alive than lacquered plastic. Another popular treatment is laser engraving: the beam removes the lustrous layer and leaves a matte mark that contrasts with the face. This way a brand can add a logo, monogram or short inscription without adding any new material. Mother of pearl is also combined with metal accessories or a rim in decorative models for jackets and dresses.
Where mother-of-pearl buttons are used
- high-end men’s shirts, dress shirts and wedding shirts;
- silk and linen blouses, dresses, lingerie;
- knitted cardigans and children’s clothing in natural fabrics;
- brands that position the product as natural and plastic-free.
When the budget or technology does not allow a natural material, an alternative is polyester buttons with a pearl effect. If you are looking for another natural material with a matte look, see our corozo buttons.
How to choose a mother-of-pearl button for your style
Before ordering, answer a few questions: what is the fabric colour (white mother of pearl for light fabrics, dark for dark ones); how strongly should the button shine; what is the buttonhole size; will there be a logo. On shirts in fine poplin, a four-hole button with a recessed centre looks more refined, while on linen and denim a denser, slightly rough mother of pearl is more suitable.
It is a good idea to request a sample and try it on the actual fabric – mother of pearl looks different on white poplin and on cream linen. Browse the full range in the mother-of-pearl buttons category.
Polkom – mother-of-pearl buttons from the manufacturer
Polkom is a Bulgarian manufacturer of accessories for fashion, furniture, footwear and bags, based in Sofia, with over 30 years of experience and wholesale supply. We supply mother-of-pearl buttons in standard sizes from stock, make models to your design and engrave logos. We send samples quickly and deliver across the EU. Send us the size, colour and quantity via the contact page – minimum quantities depend on the article.
