Alrosa’s subsidiary, the Smolensk-based plant Crystal, has automated key stages of the diamond cutting process, significantly reducing labour intensity by up to 80% while maintaining the hallmark precision of the “Russian cut.”
The automation begins with advanced machines scanning rough diamonds to create precise 3D models that map internal and external structures, including inclusions. These models generate multiple cutting scenarios, allowing experts to select the option that maximises value.
The stones are then automatically sawn and laser-shaped before reaching the final stage — master craftsmen at Crystal completing the intricate cutting. During this stage, they are supported by technology tools including scanners for parameter checks, real-time polishing quality testers, and navigators that guide facet alignment.
Alrosa said the blend of automation and human expertise not only accelerates production but also ensures the highest standards of diamond quality.