While modern precision methods of gem cutting and faceting are being used to serve the demand for calibrated stones with stricter stones lapidaries in Sri Lanka follow traditional and modern methods of precious stone cutting technologies to enhance the quality of stone with the minimum weight loss. Local lapidaries cut most of the island’s gem rough. Striving for maximum weight in each finished stone, cutters frequently align the faces poorly with the center of the stone. Therefore, many stones must be re-cut, causing a weight loss, before reaching their full potential.