Identification of high-quality pearls: bead diameter at least 9 mm or more

Pearl is currently on the market a wide range of dazzling, Wang Xin introduced to achieve the gem only a small part of the pearl. Pearl is the oyster, clam shells to form the body, each one is unique, and to judge the value of a single, pearl, generally from six aspects of comprehensive evaluation. Pearl jewelry if it is needed to consider its design, craftsmanship, together with other factors.

Pearl-level of the most important distinguishing one of the principles. Pearl size larger breeds, the more difficult, the higher the value, folk known as "seven parts beads, eight treasure" theory. Line, the jewelry-grade pearl bead Pearl ring diameter of at least 9 mm or more.

Is divided into a round, round, oval, and special-shaped (ie, irregular shape) four levels. Jewelry grade pearls round to achieve the above. In general, the shape can not be achieved no matter how large bead jewelry class.

Pearl color colorful yellow gold pearl highest value.

Luster. The so-called bedecked in jewelry and Pearl necklace pearls luster is a reflective surface of the formation of beads, in addition to the surface, but also the internal reflection of nacre, resulting in bright shining light. Good pearl luster strong and sharp reflection, pearl's surface a greater range of light and dark contrast. On the contrary, not very bright shiny beads poor, while the reflective level of weak, looked like a sweep a layer of powder on the surface Freshwater pearls feeling, also known as stay light.

Bead thickness. Now the industry is usually divided into five grades: 0.25mm below referred to as thin, 0.25 ~ 0.35mm, known as the thin, 0.35 ~ 0.5mm medium, 0.5mm thick called, while the bead layer thickness of 0.5mm or more, said to very thick. Pearl Jewelry class is usually very thick to achieve the standards.

Finish. Pearl surface, the more smooth and less defects, the higher the quality. There is no one perfect pearl. A little flaw there is a natural beauty.