Diamond processing industry technology provider Sarine Technologies Ltd announced that it has made major progress with the large-scale testing of its automated diamond clarity and colour grading technologies. The company said it remains on track for commercialisation in the third quarter of this year, with a formal launch scheduled for mid-September.
According to Sarine, the systems, which began large-scale tests in November last year, have already achieved the ability to correctly and consistently match the grading opinion of a reference group of multiple human gemmologists, and the actual polished stone’s gemmological lab report when available, within a grade’s accuracy, with 97 percent correlation for clarity and 99 percent correlation for colour.
The automated system’s error rates of 3 percent for clarity and 1 percent for colour compare with a manual grading rate in excess of 7 percent for clarity and 3.5 for non-fluorescent colour (colour grading of fluorescent diamonds is substantially worse), based on statistical analyses of the manual grading reference group, Sarine said. The company added that typically, 10 percent of clarity grade results are contested.
Sarine said it expects the automated system’s accuracy rate to be further refined over time, as its self-teaching algorithms are perfected, so that the error rates for both clarity and colour will ultimately be less than 1 percent.
Sarine Chief Executive David Block said, “For the past 25 years, we have offered the wholesale and retail markets for polished diamonds value-added services, commencing with the ground-breaking introduction of automated cut grading in 1992 and its subsequent industry-leading refinements. This was followed later with the launching of truly accurate light performance grading in 2013, Sarine Loupe imaging in 2014 and the Sarine Profile in 2015.”
He added, “Introducing technology for the comprehensive 4Cs grading at an unmatched level of accuracy, consistency and reliability, will take the consumer’s confidence to an all-new level.”
https://www.gemkonnect.com/news/september-launch-sarine-automated-colour-clarity-grading-systems