It's no secret that the most popular size diamond is the one carat round. And yet, at the same time, the reality is that most people aren't really sure how a 1-carat diamond is going to look on their finger. And if you didn't know already, one of the advantages of our stones, Super ideal cut, is that they have the correct diameter (refers to as their spread). Most commercial cut stones have a smaller diameter with more weight in their depth.