Thailand Pearl Gold Diamond 2015 Fashion Jewellery 158

 Thailand Pearl Gold Diamond 2015 Fashion Jewellery. 

By Aamir Mannan.

High-lustre pearls are bright, and have a deep-seated glow. They reflect objects near them clearly. Though high-lustre pearls usually have a thick nacre coating, thick nacre doesn't always guarantee a pearl will have high lustre. This is true because genetic imperfections in some oysters don't allow them to secrete nacre in perfect patterns that result in high lustre. Low-lustre pearls, on the other hand, have low reflective and refractive qualities. They may appear too white, or dull or chalky, and they usually have only marginal nacre thickness.