The raw minerals are cut in the family cutting room and the resulting stones are of first class quality. The production is quality controlled at every stage to ensure compliance with the following criteria. This compliance has earned the mine an officially recognised certificate.

•  Child labour is not permitted.
•  No military operations are financed by the selling.
•  The effects of the mining on the landscape are minimal.
•  The spoils from the mine have insignificant impacts on soil, water and air.
•  Wages are appropriate, all workers are proportionately involved in production.