Au750 on the diamond ring means that 750 is 75% gold, which means that the ring holder is made of K gold.
What does D0. 1 16ct mean? Ct is carats, that is, diamonds are 0. 1 16 carats, that is, diamonds with 1 1.6 cents.
The 10 diamond ring around 3000 is the normal market price ~
I hope it will help you ~ You can continue to harass Yipin Jun if you have any questions.