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The alexandrite effect of the Tavernier diamond caused by fluorescence under daylight
Author(s) -
Liu Yan,
Shigley James,
Moses Tom,
Reinitz Ilene
Publication year - 1998
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/(sici)1520-6378(199810)23:5<323::aid-col8>3.0.co;2-y
Subject(s) - incandescent light bulb , daylight , fluorescence , hue , ultraviolet , diamond , optics , sunlight , wavelength , ultraviolet light , orange (colour) , ultraviolet radiation , optoelectronics , chemistry , materials science , photochemistry , physics , organic chemistry , radiochemistry
The 56.07‐carat Tavernier pear‐shaped gem diamond not only has an important historical provenance, but also shows a substantial color change between incandescent light and daylight. This famous diamond exhibits a very strong blue fluorescence when exposed to long‐wavelength ultraviolet (UV) radiation. It appears light brown (an orange hue) under incandescent light, and light pink (a purple hue) under daylight. This change in color, or “alexandrite effect,” is caused by its very strong blue fluorescence resulting from the long‐wavelength ultraviolet component present in daylight. © 1998 John Wiley & Sons, Inc. Col Res Appl, 23, 323–327, 1998