Special grade product: grønn, gul-grønn, with some cracks and impurities, gjennomskinnelig, and the weight is above 50kg. Førsteklasses produkt: akvamarin, lysegrønn, gul-grønn, with some cracks and impurities, gjennomskinnelig, and the weight is more than 10kg. Second grade product: akvamarin, lysegrønn, ingen sprekker, a little impurity, and a block weight above 5 kg. Tredje […]
