1ct=0.2g 1g=5ct

Usually people are used to defining the point 1ct= 100.

The total weight of your diamond ring is 3.7501g.

But it depends on the weight of the diamond to judge how many carats there are.

The certificate information you listed does not have this.

Take a closer look.

D0322CT is 0.322 carats. The valuation of Yongjia Diamond is more accurate.