The difference of genuine and fake pearl jewelry is quite easy. Rubs mutually two pearls, the real pearl has the astringent feeling, the artificial or imitation pearl is the slippery feeling. the natural pearl and cultured pearl the difference is quite difficult, in the past distinguished the natural pearl to nip lightly generally with the tooth, if had the astringent feeling, was the natural pearl, otherwise was the cultured pearl, but this method easy to cause the pearl surface to receive the destruction, the best method was places under 20-30 time of magnifying glasses to inspect, the natural pearl surface presented the fingerprint shape the trace, the cultured pearl does not have this trace, presented for the orange skin's appearance.
Moreover, was pure the natural pearl to be already scarce at present, majority of was the artificial cultivation, therefore above this method was already impractical. thefresh water pearl and marine culture pearl the sea water pearl shape is the muddy circular, glossiness is good, looks like is bedecked with jewels; But the fresh water pearl many are an oblate, pear, rice grain shape and so on anomalous shape, and glossiness is bad. appreciates the pearl the value, lies in its quality fit and unfit quality.
The pearl quality mainly includes the color (skin color), the gloss (skin light), the physique, evenness and put on bead's skill, these constituted have selected and purchased the pearl the distinction basis. color the pearl best color for the black inked ribbon purple iridescence, or the golden yellow inked ribbon rose color iridescence, next for the silver, the white, slightly brings the decadent hat to be most inferior. gloss looks like from the gloss, the high-grade goods pearl must have the strong pearly luster. The gloss strong and the weak mainly decides in the nacreous layer nature, also receives the shell body's health, the sea temperature and the growth time length decided. Chooses when the bead is treating under the light the careful scrutinization, rotates the pearl under the optical fiber, reflects the silver gloss. physique looked from the physique that the pearl is greatly better, rounder is also better, the human often said that “polished” is this truth. The anomalous shape pearl price is cheap, but the plasticity is highest, many designers take them the main material quality, processes has the creative modelling. in 1934 the especially big pearl - - father bead which discovered in the Philippine Balawang sea (is called bead of the Allah), the shape is anomalous, because this natural bead resembles my federal highway ancestor father image, the value reaches as high as 4,080,000 US dollars. evenness the pearl's surface layer slide exquisitely to best, but this kind of bead is rare, the pearl more or less can the somewhat external slight defect. Certainly, the slight defect will affect the pearl very obviously artistic, when will affect the pearl the maintenance, the choice, these should do for the standard.