A carat diamond ring is generally above 10W in retail stores and above 5W in online diamond malls. Of course, it is not impossible to buy a carat diamond ring at 3W, mainly depending on the strength of the diamond dealer. Only those merchants who sell diamonds in large quantities dare to make small profits but quick turnover at low prices, otherwise buyers will not even earn back store rent, utilities and labor costs. My cousin got married on May 1 and bought a wedding diamond ring at Diamond Express. 1.02 carat is only 2.8W, and there is a national inspection certificate. Let's have a look ~ ~