How to measure the merits of the diamond

Diamond is a pure carbon crystal, it is the element carbon and graphite are allotropes, mostly diamonds octahedron, cube rare. Most of the original stone exterior with watermarks that has the close, hardness, refractive index, strong, non-conductive, easy to heat, acid and alkali resistant, chemically very stable. Diamond is the world's hardest mineral, is one of Morocco's 10, the ability of a high degree of squeezing, pounding fear. The color can be divided into a transparent body, translucent and opaque body three.
How to measure the merits of the diamond? First of all, it should have sufficient understanding of the basic knowledge to determine the diamond's good or bad, from the color of diamonds, crystal purity and workmanship quality in three areas as the basis for identification of diamonds. Judging from the color quality is critical, in general, the diamond to colorless and transparent, pure water are best. Usually more colored diamonds, such as the colorless and transparent in a little touch of blue, the color is excellent elements, called "fire and water color."
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China's diamond to colorless, light yellow, light brown, some green, gray, orange and see the green spot. Thus, from raw materials to processing and synthesis of diamonds to determine the merits of jewelry, diamond jewelry, the better the color more white, transparent and pure crystal is good, workmanship is good new work rules. On the contrary, the color yellow or tea, crystals containing impurities, the workmanship is the difference between the old rules do not work.
Another perspective, a high degree of crystallinity, completely transparent, flawless, particles bigger the better, most valuable diamonds are known as "White Diamond", that purity of more than 99 "water and fire drill" "Red Diamond", "Pink Diamond", "Blue Diamond", "Golden Diamond", "Black Diamond" and so on. These improved varieties, more than 3 carats in weight shall be expensive diamonds, generally require not less than 0.25 kt. The more valuable the larger crystals, if the weight is more than 100 kt in the world were drilled. Expensive because of the diamond, imitation or artificial techniques to achieve through a variety of cover up defects, raise grade is a common experience, so identifying the identification of authenticity as well as strict quality grade is extremely important. diamond diamond.yifei8.net
The difference between diamonds and glass material is glass imitation diamonds rough work, of soft, flute the edge angle and easy to wear, wearing a period of time, often the phenomenon of different degrees of fluff, refractive index difference, glossy dark , its top facing down, bottom up, through finger on the hand. Most of the bottom feeder coated with mercury, reflecting the rate increase, but not any kind of fake diamond hardness. Despite genuine long-term wear and decorative use, not have the slightest fuzzy. If able to do so, use the diamond jewelry diamond pen in the bottom edge of a try, you can stand off between true and false, this is the safest and most reliable identification methods.

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