Hindu Celebration

Every coloured gemstone is unique.

Colour grading.

​Colour trade names must have a good proportion in cut, light return,  chromophore present and or absent, fill specific criteria in chemistry and light absorbance, Have good transparency and colour homogeneity. 

​

Each Colour trade name has its own definition, our colour master sets are open to the public in our laboratories.

​

​

color belle 3D.jpg

Colour Trade Names.

Pigeon's Blood

This trade name originate from Burma (Myanmar) to describe the best colour in Ruby. It's suppose to be reminiscent of the Red colour of a pigeon fresh blood or reminiscent of the blood surrounding the eyes of a pigeon. 

gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, pigeon blood, red
gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, pigeon blood, red
Royal Blue

This trade name is used to describe the best colour in Blue Sapphire, reminiscent of the finest blue used in clothing for Royal families.

gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, royal blue, cornflower,
gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, royal blue, cornflower,
Padparadscha

This trade name is used to describe the best colour in Orangy Pink Sapphire, reminiscent of the unique hue found in wild lotus flower.

gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, royal blue, cornflower, padparadscha
Padparadscha Sapphire technical sheet.
Paraiba

This trade name is used to describe the best colour in  Cuprian Elbaite Tourmaline, Reminiscent of the Vivid greenish Blue found in Paraiba old mine.

gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, royal blue, cornflower,padparadscha, paraiba tourmaline
Paraiba Tourmaline technical sheet.
Cobalt Spinel
gemology, bellerophon gemlab, martial curti, emerald, ruby, sapphire, royal blue, cornflower,padparadscha, cobalt spinel, blue spinel