Who can explain the characteristics and color grading of pink diamonds, the more detailed the better
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Who can explain the characteristics and color grading of pink diamonds, the more detailed the better
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The level of pink diamonds is like this: weak pink, very light pink (Very Light), light pink (light), lighter pink (Fancy Light), normal pink, and darker pink. (), Darkydeep, bright pink (). There are 8 levels in total. Pink diamonds are formed by changes in the mineral structure. And it is much more precious than white diamonds, and only 50 carats in the world each year. At present, there are few pink jewelery in China. I know Darry Ring. Their rare pink diamond series is quite beautiful, and DR itself can only be customized in each man's life card. People. They are all precious and romantic!
Pink diamonds have long been regarded as treasures for long -term beauty. Only in the past 20 years, pink diamonds have been mined normally due to Australia's mining of Argyle mining, but the number is still limited.
For a long time, there has been no enough pink diamonds anywhere in the world to meet the needs of extensive and in -depth research on it. The Gem Trading Laboratory (Thegem) of the United States has already owned 1500 pink diamond appraisal research results and related data. Through research, the characteristics and color grading system of natural pink diamonds were determined.
The pink diamonds include: light purple tone pink -pink -pink pink. The reasons for color diamonds to be studied still. Some studies believe that it is caused by diamond crystal defects, which is consistent with the color cause of the brown diamond. Studies also pointed out that pink diamonds include Type Ⅰ and type II. Among the 1490 pink diamonds that are studied, 1166 pink diamonds, only 324 pink diamonds, that is, the proportion of pink diamonds in type I diamonds is large, while the proportion of pink diamonds in type II diamonds is small. However, the study also found that most of the weight in the pink diamonds of type II, while the weight of the pink diamonds is mostly small, that is, the pink of the diamond is not only related to the type of diamond, but also related to its weight. Different types of pink diamond pink changes are also different.
The color grading of the American GIA pink diamond is: faint pink, very light pink (Very Light), light pink (light), light pink (Fancy Light), and normal pink. ), Deeper pink (), dark pink (FancyDeep), bright pink ().
The research on pink diamonds found that nearly 1/2 of the samples of the pink diamonds are displayed in the ribbon. Among them, the ribbon of type I pink diamond shows that it does not exceed 65 %. Belt.
The testimony of pink diamonds, the clarity is almost irrelevant, which is completely different from the requirements for evaluation and evaluation of colorless diamonds. However, the results of pink diamond identification confirmed that 68 % of the type II pink diamond clarity is above VS. All sample test results, pink diamonds with VS clarity account for only 51 %.
In pink diamonds under purple light (whether long waves or short waves), most of them have no or rarely displaying fluorescent effects, but the color can change during the cutting and polishing process.