One-carat diamond ring is a hundred-cent diamond ring, one carat is equal to 100 minute, and the mass is 0.2g. "Carat" is the international unit of diamond weight, but consumers have no actual concept of this unit, so the most frequently asked question is "How many grams is one carat", and the size of one carat diamond is also the focus of attention. How many grams is a carat? 1 carat = 0.2g (equivalent to the weight of a paper clip). 1 carat = 100 integral; So 0. 1 carat is also called 10. Note: 100% system is only used for diamonds. Generally, other gems are 0.xx carats. How common are round cut diamonds for a carat diamond? 1 0min diamond diameter is 3mm, 75min diamond diameter is 6mm,1carat diamond diameter is 6.5mm；; What styles of one carat diamond ring do you have? Although the price of one carat is relatively high, its collection value is directly proportional to its price. There are also many styles of one carat diamond ring in the spring potato market, such as princess square with atmosphere, romantic heart shape, classic pickpocket circle and so on. When we buy a one-carat diamond ring, we'd better choose the shape of the diamond according to our own preferences and the quality of the diamond according to our own economic ability.