Pearls black, gold, and red are the most expensive.

Pearls black, gold and red are the most expensive. Golden pearls are mainly produced in Southeast Asia, China, Japan, Australia and other countries or regions. Especially Indonesia in Southeast Asia is the world's only independent cultivation of gold pearls, gold pearls are difficult to cultivate, resulting in very little gold pearls, so gold pearls have become one of the most expensive color pearls.

Black pearls are best known as Tahitian black pearls, a very valuable variety of pearls, known as the mother shell's most hurtful tears. Suffice it to say that the birth of black pearls has to put the shellfish creatures through suffering before they can come into the world, which makes black pearls rare and noble.

Pearls with a nucleus and the difference between the nucleus

1, shape

Pearls with a nucleus are seawater, artificial cultivated varieties of seawater, generally to the majority of the round, more rounded and full. Nucleated pearls are freshwater, artificial cultivated in freshwater areas of the type, its shape is rich and diverse, positively rounded rarely, common oval, flat round, shaped and so on.

2, size

From the size point of view, nucleated pearls generally range from 6mm to 15mm, the density is greater than that of the nucleated pearls. The size of the particles of nucleated pearls is difficult to control, as small as 1mm to 12mm are rare.

3, luster

Because of the different growth environments, the nucleated pearls to the metallic luster of the majority of the luster is better than the nucleated; while the surface of the nucleated pearls show a soft luster, looks to give a warm lubricated feeling, the overall quality of the pearl than the nucleated pearl is heavier.