Everyone knows that gems are measured in “carate”, şi 1 gram is equivalent to 5 carate (ct). O 1 carat round brilliant diamond with a diameter of approximately 6.3 la 6.5 mm. În general, the price of gemstones is calculated in carats. De exemplu, if a ruby weighs 5 carate, the total price is 55,000 RMB. […]
