What determines the price of natural pearls (6 photos)
The cost of a necklace made of "wild" pearls is approximately 250 g. reach 60 thousand dollars. And a similar necklace made of pearls grown on plantations will be valued 10 times less. But why is that? 
Jewelry pearls are formed in the shells of sea and river shellfish. They are distributed throughout the world. But sea pebbles are much larger and value much higher. 
A pearl is, in fact, debris that has penetrated the shell: a fragment of the skeleton, a grain of sand, or a parasitic organism that has been isolated by a mollusk with a concentric layer of mother-of-pearl.
Here is the resulting product can be a variety of colors shades. Available in cream, green, black, white and even blue minerals. 
Pearls from Antiquity to the Late Middle Ages were most precious treasure. Today its price has fallen thanks to technologies of pearl cultivation and the production of artificial jewelry. But still, even the modern market price of pearls is far from what to be accessible to everyone. For most people, it's out of reach. luxury. 
Among precious stones, pearls are the only ones that do not require careful processing. But not every pearl will be expensive. Round, rare shades are considered ideal - turquoise, pink, brown-gold, blue. The mother-of-pearl layer is also important, which thicker in healthy shellfish. Well, of course, the pearl should be without defects and shiny. And the most massive stone will be more expensive. And define - sea, river or plantation-grown pearl - impossible. But a natural pearl, caught by hunters on the coast, costs many times more. Jewelry workshops try to work with verified suppliers so that there is no deception. 
"Head of Allah"
That is, pearls as such are not precious. But becomes it if it acquires rare features - an ideal spherical shape, unique shade, large size.
But it's funny that the most expensive pearls are shapeless "Head of Allah" and "Puerto". But their trick is in size, because The "head" weighs 6.37 kg and costs approximately $40 million. Here's Puerto weighs as much as 34 kg and the price of this pearl is 100 million dollars. 
"Puerto"
