The process of casing coloured crystal is the most difficult process of whole crystal product manufacture as we already mentioned in glassworks. The process difficulty of coloured cased crystal in cutting is much higher too in comparison with process of regular clear crystal.
Because of the colour layer the glass-cutter can´t see trough the product and so he has to have much more experiences than cutting clear crystal. Glass-cutter realizes that if he doesn´t estimate correct depth of the cut he can cut trough inside. That product is devalued and must be discarded then. Cutting is done under running water by cutting wheels tipped by tech. diamonds and the cut off material is washed away into the filtration. Thanks to that the dust is not releasing anymore as it had been for centuries when the glass-cutters were cutting with dry stone wheels.
In Josefodol we do many types of cutting especially deep wedge cuts, flat cuts, matting and other techniques which are production secrets. Especially difficult technique is when a glass-cutter can´t see the place he cuts through the colour layer and running water and so he does that by his memory and use his craft skill and experience. Glass-cutters in Josefodol know every single product from memory. All is 100% hand made and each product is original.