Structure of Pearls


The structure of a replica van cleef & arpels ring with pearl resembles that of an onion. Layers of calcium carbonate and other matter, extracted from the water by the pearl oyster or pearl mussel, are deposited about some foreign substance, like a grain of sand, which has lodged itself within the shell and irritates the body of the oyster or mussel. A pearl may assume any shape: spherical the most prized, drop or pear-shaped, oval or egg-shaped, or it may be quite irregular in form. The word pearl itself means a pear-shaped ornament.

Boutons or button pears, are frequently found attached to the shell from which they are cut. The bottom part is smoothed and polished. They lack luster on the side which was attached to the shell. Wart or blister replica van cleef & arpels alhambra necklace pearls are the result of a parasites being walled up at the point of entrance to the shell. Irregular and odd-shaped pearls are called boroques.

Color of Pearls

Ordinarily the color of pearls is a satiny silver or bluish white. Or a faintly tinged yellowish-white. More rarely they are salmon-pink, purple, reddish, or blackish-gray. Perfect black pearls are valuable, but not so costly as the finest white. Pearls are translucent to a varying degree.

Luster of Pearls

What brilliancy is to the diamond, luster is to the pearl. This is known as "orient." The thinner the coatings of deposit are, the finer is the luster. As many as 87 layers are found in rare Indian oyster replica van cleef & arpels jewelry with pearls.