An Israeli high-tech company has invented a machine that it says can instantly grade the clarity of polished diamonds. It’s a development the company says will bring new standards to a painstaking process that has long been subject to the whims of human subjectivity. This machine is making it easier for gemmologists find out. It’s been designed by Sarine Technologies in Israel to grade the clarity of stones. The Sarine Clarity machine maps the diamond’s inclusion and flaws, known as birthmarks. It then applies a predefined set of rules and algorithms to determine the appropriate clarity grade. The company is spending around US$10-million in research and development.