Practicality of Colibri^TM, a diamond colour grading product by Sarin

Abstract

Colibri^TM was developed by Sarin Technologies Ltd. as automatic colour grading product for cape series diamonds. The characteristics and practicality of the Colibri^TM were examined by measuring about 15,000 pieces of diamond that had been graded by general routine work. As the result, it was confirmed that this instrument can be fairly useful as reference for objective colour grade on the majority of cape series diamonds when the instrument was properly used.