The quality of the mother-of-pearl (the thickness of the nacre layers, the opacity, the uniformity, etc.)

The layers are called 'nacre,' giving pearls their luminescence.

Personally, I like natural mother-of-pearl and the enormous or small buttons of mother-of-pearl, no half measures!

The invention concerns compositions and supports designed for preservation of nacre, in particular pearl nacre.

The word “mother-of-pearl” comes from the Arabic “naqqarah“.

NACRE stands for: New Accelerators, Consulting, Research and Engineering.

The object of this invention is to provide a mother-of-pearl ornamental plate.

The word “mother-of-pearl” comes from the Arabic “naqqarah“.

The word "nacre" comes from the Arabic "naqqarah".

The word "nacre" comes from the Arabic "naqqarah".

Finally, for the Greeks, it is a symbol of love and they offered their beloved a worked mother-of-pearl jewel.

They found that the insertion of this nacre induced the production of layers of newly formed bone adjacent to the implanted pearl nacre filling.

At Rolex, mother-of-pearl is never artificially coloured.

At Rolex, the mother-of-pearl is never artificially coloured.

The word "nacre" comes from the Arabic "naqqarah".