DiamCalc
Cut gemstone modelling software from OctoNus that renders a polished stone from its measured proportions to assess light behaviour.
The record
What it makes
Named as the maker names them on its own site. Specifications and availability change; confirm with the maker before ordering.
Worth knowing
The vendor states that sales of DiamCalc and DiamCalc Pro are discontinued. The most recent release documented on the vendor page is 3.3.53 from April 2017; downloads and documentation remain online but the product is no longer sold. The vendor does not state the operating system on that page.
Compiled from octonus.com, read on August 16, 2026.
We record what makers publish about themselves. We have not tested this equipment, we take no commission on it, and a listing here is not a recommendation to buy.