Everyone knows that gems are measured in “carats”, en 1 gram is equivalent to 5 carats (ct). N 1 carat round brilliant diamond with a diameter of approximately 6.3 na 6.5 mm. Oor die algemeen, the price of gemstones is calculated in carats. Byvoorbeeld, if a ruby weighs 5 carats, the total price is 55,000 RMB. […]