A number of factors affect the evaluation of pearl quality. We endorse that shoppers learn the fundamentals of choosing fine pearls to make pearl purchasing a pleasurable experience and to guarantee a sound investment. Pearls Size Pearl size is generally decided by 2 factors : the scale of the implanted nucleus and the thickness of the nacre that grows layer on layer round the nucleus. A pearl with a thick nacre coating will keep its luster and beauty for a life-time when correctly cared for. For pearls of similar quality, the most vital other basis of price is the size of the pearl. The size is normally measured in millimeters.
Pearls Shape Completely round cultured pearls are the rarest. To test a strand for roundness, roll it across a leveled surface. The strand should move uniformly and smoothly. Pearls Luster Luster makes reference to the surface property that imbues cultured pearls with their shine and beauty. When checking pearls for luster, view them while standing with your back to a source of light.
Pearls Color Pearls come in a selection of shades, with the major classifications being white, pink, silver, cream, gold, and black. Choice pearls also have a secondary color, or overtone, around the outer layer of the pearl. These overtones are sometimes rose, green or blue. The color should ensue from deep inside the centre of the pearl.
All of the pearls in a strand should be consistent in color. Pearls Surface just like any product of nature, all cultured pearls have minor defects. A top quality cultured pearl is freed from huge pits or marks. Akoya pearls are from 2 to 10 millimeters in size, and their shape is sometimes round or off-round. Typically pearls are cropped after roughly eighteen months to 3 years of cultivation, reaching about 0.5 mm in diameter after eighteen months in the host oyster. Akoya pearls are famous for their high luster and rich color.
Tahitian Black Pearls Tahitian Black pearls are cultivated from Pinctada Margaritifera oysters ( black lip oysters ) found in French Polynesian waters. Black South Sea pearls come in a large range of colours from silver / grey, blue, and red / aubergine to dark green, with peacock being the most valuable. Cultivation time averages about 2 years.
Wednesday, January 6, 2010
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