2 thoughts on “How to classify the color of pink diamonds”
Geraldine
How is the color grading of pink diamonds determined? Pink diamonds have been regarded as treasures for a long time. 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. The rare and beauty of pink diamonds make it a world -class jewelry auction -important auction products at the Christies jewelry auction. In 1994, Carlsde auctioned a 19.66 -carat pink diamonds auctioned at the Geneva auction in Switzerland, with a transaction price of $ 37,7483 per carat, with a total value of $ 7.4 million. In 1995, Sotheby auctioned a 7.37 carat with a 7.37 carat, which was auctioned at $ 818,863 per carat, with a total value of $ 6 million. 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 Geospent Trade Lama (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 color grading of pink diamond pink diamonds include: light purple tone pink -pink -orange -yellow 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: weak pink (Faint), very light pink (Very Light), light pink (light), lighter pink (Fancy Light), normal pink, and deeper Pink (), darkdeep, bright pink (). The study of pink diamonds found that nearly 1/2 of the samples of the pink diamonds were displayed. Among them, the ribbon of type I pink diamond showed no more than 65 %, and only 12 % of the pink diamonds appeared. 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 %. Pink diamonds are under purple light (whether long waves or short waves), and most of them have no or rarely displaying fluorescent effects. Pink diamonds can change the color during cutting and polishing.
How is the color grading of pink diamonds determined? Pink diamonds have been regarded as treasures for a long time. 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.
The rare and beauty of pink diamonds make it a world -class jewelry auction -important auction products at the Christies jewelry auction. In 1994, Carlsde auctioned a 19.66 -carat pink diamonds auctioned at the Geneva auction in Switzerland, with a transaction price of $ 37,7483 per carat, with a total value of $ 7.4 million. In 1995, Sotheby auctioned a 7.37 carat with a 7.37 carat, which was auctioned at $ 818,863 per carat, with a total value of $ 6 million.
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 Geospent Trade Lama (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 color grading of pink diamond
pink diamonds include: light purple tone pink -pink -orange -yellow 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: weak pink (Faint), very light pink (Very Light), light pink (light), lighter pink (Fancy Light), normal pink, and deeper Pink (), darkdeep, bright pink (). The study of pink diamonds found that nearly 1/2 of the samples of the pink diamonds were displayed. Among them, the ribbon of type I pink diamond showed no more than 65 %, and only 12 % of the pink diamonds appeared.
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 %. Pink diamonds are under purple light (whether long waves or short waves), and most of them have no or rarely displaying fluorescent effects. Pink diamonds can change the color during cutting and polishing.
Pink is not classified on the certificate