This filament was made by Prusa himself. Prusa's entire manufacturing process is closely monitored and checked - they guarantee a precision of ± 0.02mm and highly consistent colors.
Each roll of Prusament also has a unique QR code with which you can find detailed information about its spool.
We recommend that you print the “Mystic” filaments with high layer heights in order to develop the full color spectrum. Compare the product pictures: the pictures of the coil show all possible colors, while the color sample shows just one boring color.