Amethyst
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Amethyst violet new! A moderate violet natural amethyst spectrum obtained through 10 mm thick plate along an arbitrary direction. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/amethyst_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/amethyst_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/amethyst.jpg) |
amethyst_prizm.dmc |
amethyst.xls |
amethyst.dmc |
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Corundum
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Corundum Red direction 1 A red synthetic corundum spectrum obtained through 10 mm thick plate along an arbitrary direction. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction1_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction1_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction1.jpg) |
Corundum_Red_direction1_prizm.dmc |
Corundum_Red_direction1.xls |
Corundum_Red_direction1.dmc |
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Corundum Red irection 2 Spectrum of the same red material obtained through the 11 mm thick plate with another arbitrary direction. Red color of that stone is related with Cr3+ adsorption features. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction2_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction2_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Red_direction2.jpg) |
Corundum_Red_direction2_prizm.dmc |
Corundum_Red_direction2.xls |
Corundum_Red_direction2.dmc |
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Corundum Orange Red direction 1 An orange-red synthetic corundum spectrum obtained through 10 mm thick plate along an arbitrary direction. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction1_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction1_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction1.jpg) |
Corundum_OrRed_direction1_prizm.dmc |
Corundum_OrRed_direction1.xls |
Corundum_OrRed_direction1.dmc |
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Corundum Orange Red direction 2 Spectrum of the same material obtained through the 11.5 mm thick plate along another direction. Cr3+ features also present in spectrum of this stone, but the concentration of Cr is much lower. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction2_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction2_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_OrRed_direction2.jpg) |
Corundum_OrRed_direction2_prizm.dmc |
Corundum_OrRed_direction2.xls |
Corundum_OrRed_direction2.dmc |
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Corundum Orange direction 1 An orange synthetic corundum spectrum obtained through 9 mm thick plate along an arbitrary direction. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction1_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction1_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction1.jpg) |
Corundum_Or_direction1_prizm.dmc |
Corundum_Or_direction1.xls |
Corundum_Or_direction1.dmc |
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Corundum Orange direction 2 Spectrum of the same material obtained through the 10 mm thick plate along another direction. No Cr3+ related features present. Color origin of that stone is undefined. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction2_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction2_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Corundum_Or_direction2.jpg) |
Corundum_Or_direction2_prizm.dmc |
Corundum_Or_direction2.xls |
Corundum_Or_direction2.dmc |
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Cubic Zirconium
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Cubic Zirconium Green A green cubic zirconium (CZ) spectrum obtained through 18 mm thick plate. Color of that stone is related with REE adsorption. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/CZ_Green_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Green_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Green.jpg) |
CZ_Green_prizm.dmc |
CZ_Green.xls |
CZ_Green.dmc |
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Cubic Zirconium Red A red CZ spectrum obtained through 20 mm thick plate. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/CZ_Red_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Red_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Red.jpg) |
CZ_Red_prizm.dmc |
CZ_Red.xls |
CZ_Red.dmc |
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Cubic Zirconium Violet A violet CZ spectrum obtained through 22 mm thick plate. Color of that stone is related with REE adsorption. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/CZ_Violet_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Violet_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Violet.jpg) |
CZ_Violet_prizm.dmc |
CZ_Violet.xls |
CZ_Violet.dmc |
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Cubic Zirconium Yellow new! A yellow cubic zirconium (CZ) spectrum obtained through 4 mm thick plate. Color of that stone is related with REE adsorption. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/CZ_Yellow_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Yellow_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/CZ_Yellow.jpg) |
CZ_Yellow_prizm.dmc |
CZ_Yellow.xls |
CZ_Yellow.dmc |
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Diamond
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Diamond Dark Orange Brown A dark orange-brown natural diamond (untreated) spectrum obtained through 3.6 mm thick plate. This diamond is Ia type and it can be assumed that its color is connected with dislocations. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Dark_OrangeBrown_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Dark_OrangeBrown_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Dark_OrangeBrown.jpg) |
Diamond_Dark_OrangeBrown_prizm.dmc |
Diamond_Dark_OrangeBrown.xls |
Diamond_Dark_OrangeBrown.dmc |
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Diamond Fancy Deep Orange Brown A fancy deep orange-brown natural diamond (untreated) "Diamond_Fancy_Deep_Orange_ Brown" spectrum obtained through 4.15 mm thick plate. This diamond is Ia type and it is assumed that its color is also connected with dislocations. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_DeepOrBr_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_DeepOrBr_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_DeepOrBr.jpg) |
Diamond_Fancy_DeepOrBr_prizm.dmc |
Diamond_Fancy_DeepOrBr.xls |
Diamond_Fancy_DeepOrBr.dmc |
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Diamond Fancy Yellow A fancy yellow natural diamond (untreated) spectrum obtained through 4 mm thick plate. This diamond is natural Ib type and its color is related with C-centers absorption. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_Yellow_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_Yellow_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_Yellow.jpg) |
Diamond_Fancy_Yellow_prizm.dmc |
Diamond_Fancy_Yellow.xls |
Diamond_Fancy_Yellow.dmc |
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Diamond Fancy Yellow Lemon A fancy greenish-yellow natural diamond (untreated) spectrum obtained through 6.76 mm thick plate. Color of that stone is related with two broad bands on 478 and 560 nm. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_YellowLemon_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_YellowLemon_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Fancy_YellowLemon.jpg) |
Diamond_Fancy_YellowLemon_prizm.dmc |
Diamond_Fancy_YellowLemon.xls |
Diamond_Fancy_YellowLemon.dmc |
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Diamond Yellow new! A light yellow natural diamond spectrum obtained through 3.5 mm thick plate along an triad axis direction. This diamond is Ia type and its color is related with N3-N2 centres. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Yellow_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Yellow_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Diamond_Yellow.jpg) |
Diamond_Yellow_prizm.dmc |
Diamond_Yellow.xls |
Diamond_Yellow.dmc |
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Sapphire
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Sapphire new! A blue natural sapphire "Sapphire" spectrum obtained from Mineral Spectroscopy Server visible spectra database* and then adjusted. Sapphire color is related with Ti-Fe presence. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Sapphire_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Sapphire_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Sapphire.jpg) |
Sapphire_prizm.dmc |
Sapphire.xls |
Sapphire.dmc |
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Emerald
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Emerald new! A green natural emerald spectrum is one of DiamCalc standard spectra. Emerald color is related with Cr presence. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Emerald_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Emerald_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Emerald.jpg) |
Emerald_prizm.dmc |
Emerald.xls |
Emerald.dmc |
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Synthetic diamond
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Yellow synthetic diamond A yellow synthetic diamond spectrum obtained through 5 mm thick plate. This diamond is Ib type and its color is related with C-centers absorption. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Synthetic_diamond_Yellow_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Synthetic_diamond_Yellow_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Synthetic_diamond_Yellow.jpg) |
Synthetic_diamond_Yellow_prizm.dmc |
Synthetic_diamond_Yellow.xls |
Synthetic_diamond_Yellow.dmc |
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Topaz
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Topaz parallel C-axis direction A blue irradiated topaz "Topaz_paralC" spectrum obtained through 13 mm thick plate along parallel C-axis |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Topaz_paralC_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Topaz_paralC_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Topaz_paralC.jpg) |
Topaz_paralC_prizm.dmc |
Topaz_paralC.xls |
Topaz_paralC.dmc |
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Topaz perpendicular C-axis direction Spectrum of the same material obtained through the 11.5 mm thick plate in the perpendicular C-axis direction. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Topaz_perpC_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Topaz_perpC_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Topaz_perpC.jpg) |
Topaz_perpC_prizm.dmc |
Topaz_perpC.xls |
Topaz_perpC.dmc |
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Quartz
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Quartz through the zone with weaker color A yellow color-treated natural quartz spectrum obtained through 12 mm thick plate perpendicular C-axis of the stone recorder through the zone with weaker color. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_weak_perpC_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_weak_perpC_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_weak_perpC.jpg) |
Qtz_Yellow_weak_perpC_prizm.dmc |
Qtz_Yellow_weak_perpC.xls |
Qtz_Yellow_weak_perpC.dmc |
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Quartz through the zone with more yellow color Spectrum of the same material obtained through the same plate but through the zone with more yellow color. Color of that stone is related with Fe3+ presence. |
![Open DiamCalc file](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_intence_perpC_prizm.gif) |
![](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_intence_perpC_spectrum.jpg) |
![](https://legacy.octonus.com/oct/projects/spectrums/Qtz_Yellow_intence_perpC.jpg) |
Qtz_Yellow_intence_perpC_prizm.dmc |
Qtz_Yellow_intence_perpC.xls |
Qtz_Yellow_intence_perpC.dmc |
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