Diamond ＂bigger is better＂ is misleading

Gold has adjusted, real estate has control, the stock market risk, futures have a bubble, only diamonds lose money and not fall, and head the bigger the better, at least more than 1 carat - Recently, such a propaganda frequently seen in the media. However, the State Quality Supervision and Inspection Center jade jewelry recently head of new national standards in diamond grading Shanghai briefing that the investment-grade diamond grading standards are very complex, only the head is very scientific measure. Shanghai Diamond Exchange, said vice president Yuan Wenyao, Diamond realized the narrow channels, the price may fluctuate with the economic situation changes, so the Diamond Exchange does not recommend the general public to buy diamond investments.
Expert introduction, investment-grade level to wear diamonds and diamonds in the selection criteria, there are many differences. We all know that diamonds are 4C (ie weight, color, clarity, cut) standard, but may not understand one of the science.
■ Weight Diamond "bigger is better" is misleading. Over the past three years, 3 kt diamond prices doubled bare 30 million dollars, nearly half a year and up 20 percent, the biggest value-added varieties. In contrast, 1 carat loose diamonds rose only 10 percent the past six months, and 5 kt bare diamond prices almost unchanged.
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■ color diamond color from D to N sub-11, consumers choose to buy diamond H color is enough, investment will need to select the highest level of D, E, F three colors.
■ Clarity diamond jewelry clarity in the VS, VVS class can, but only to achieve clarity VS1 above, in particular, is the highest level of FL, IF all flawless loose diamonds are worth investment.
■ common in advertising cut "Hearts and Arrows" cut only shows good symmetry. Investors should read the certificate through, choose a percentage of bare gold cut diamond. Such as diamonds, but also the "waistline", Diamond tops and wide-diameter ratio to 53% -60%, and the diamond height and diameter of the full-depth ratio to between 59% -63%.
■ Diamond fluorescence intensity long-wave ultraviolet irradiation in the natural fluorescence emitted determines its appreciation of the potential strength of the strong level of loose diamonds, will lose its investment value.
■ In recent years, China's consumer diamond pink diamonds, especially sought after. Experts pointed out that the pink diamond is in fact not the best investment products. As a result, small pink diamond head; secondly, it has been stir-fried, and the prices have overdraft risk

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