The characteristics of the crystals of nacre, luster, orient, remain effective after the treatment slightly modified. These colors are permanent, they are not altered and they are not just superficial. When breaking apart a radiated pearl can be observed that all in it's interior has the same color as in the surface.

Dyed color
Dyed pearls are those that obtain their outer color by the external application of a chemical layer, consisting in a diverse pigmented components, which will allow them to obtain any color, but never with the luster and orients of the original nacre.

The quality of the applied layer will depend on the used chemistries, which will be vulnerable to dissolvents and alcohol. The dyed colors are not permanent, that's why they will have to have a special well-taken care to maintain their colors alive.+BACK