Diamond Scintillation and Quality Evaluation

Diamond Scintillation and Quality Evaluation

The quality of a diamond is not only affected by the 4Cs but also affected by fire and scintillation. The relationship between the color, clarity, fluorescence, and scintillation of a diamond is obtained by associating its scintillation area and gemological characteristics. Take images of 18 round b...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2020-01, Vol.746 (1), p.12029
Hauptverfasser: Zhang, Zhongkui, Guo, Ying, Liu, Qiutong, Shen, Yijiang
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Clarity
Color
Diamonds
Fluorescence
Quality assessment
Scintillation
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creator Zhang, Zhongkui
Guo, Ying
Liu, Qiutong
Shen, Yijiang
description The quality of a diamond is not only affected by the 4Cs but also affected by fire and scintillation. The relationship between the color, clarity, fluorescence, and scintillation of a diamond is obtained by associating its scintillation area and gemological characteristics. Take images of 18 round bright cut diamonds in total, for each to rotate 30° to take one and get 12 images by rotating a circle. Rotate the images to the same angle, cut out the square image of 1000*1000 pixels, then calculate the color difference of the image of adjacent angles, and then judge whether scintillation occurs at each point to get the scintillation area of the diamond. The results showed that the lighter the color, the better the clarity and the weaker the fluorescence, then the larger the scintillation area and the more obvious the scintillation. This indicates that the scintillation area has a certain reference value for diamond quality evaluation.
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subjects Clarity
Color
Diamonds
Fluorescence
Quality assessment
Scintillation
title Diamond Scintillation and Quality Evaluation
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