How to distinguish the quality of a diamond, people know to start from the diamond's 4C standard, to see the diamond's weight, color, cleanliness and cut surface can be bright and bright. To accurately identify the quality of a diamond, simply look at the 4C of the diamond is not enough, but also must pay attention to many details. 1 Consider whether a diamond is worth buying. The main premise is that this diamond must not be inlaid. Because of the diamonds set in the end, it is impossible to accurately determine its ranking. 2 Inlays of different situations can make the diamond look whiter or yellower than itself; and the claw marks on the setting can hide the flaws on the diamond. Diamonds are originally the hardest jewels in nature, but when inlaying or disassembling, if the strength used is not accurate, it is enough to damage the edge of the diamond and affect the value. If the diamond has been inlaid at the time of purchase, take the diamond off the judgment to make it more accurate to determine its integrity, texture and value. 3 If the diamond is placed under the sun or yellow light, the diamond will shine and be dazzling; the correct method is to place the diamond under a pure white light source without ultraviolet light and carefully observe it with a 10x magnifying glass. When buying a diamond, it is difficult to judge by the human eye alone. A round-drilled diamond cuts back from the light entering the countertop. Therefore, it is not possible to see from the top whether there is any flaws below, only the distance is seen through the bottom. This point must be paid attention to by outsiders. 4 Dirty diamonds will be yellow and dull. In general, the diamond ornaments are placed in a clean liquid for half a year and cleaned on a supersonic machine to make it shine. The determined diamond must be at least clean. After disassembly and cleaning, it is necessary to distinguish the diamond's ranking and color. 5 American Jewelry Institute divides diamonds into several grades in color: D to F grades are colorless, that is, ninety-nine, ninety-eight colors; G to I grades are nearly colorless, all are superior; and below grade I is yellowish Or light yellow, that is, below nine or five colors. In terms of clarity, FL is perfect for the first-class products, VVS1 is a first-class micro-small, VVS2 is a second-class micro-small, and these diamonds are worthy of purchase and collection. OL Jewelry Network is sold in the color I or above, the clarity of VS or more products, please rest assured enough to buy.
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How to identify the quality of diamonds