Special grade product: zielony, żółto-zielony, with some cracks and impurities, przeświecający, and the weight is above 50kg. First-class product: akwamaryn, jasnozielony, żółto-zielony, with some cracks and impurities, przeświecający, and the weight is more than 10kg. Second grade product: akwamaryn, jasnozielony, żadnych pęknięć, a little impurity, and a block weight above 5 kg. Trzeci […]
