Special grade product: grøn, gul-grøn, with some cracks and impurities, gennemskinnelig, and the weight is above 50kg. First-class product: akvamarin, lysegrøn, gul-grøn, with some cracks and impurities, gennemskinnelig, and the weight is more than 10kg. Second grade product: akvamarin, lysegrøn, ingen revner, a little impurity, and a block weight above 5 kg. Tredje […]
