What to look for in a 2 carat Emerald Cut Diamond: A 2 carat emerald cut diamond ring is going to focus on clarity, since this is a decent size for the diamond. Emerald cuts are based on a rectangular shape, with the corners cropped, and have long, chiseled facets that if you look from the top almost look like steps, referred to as step cuts. In an emerald cut diamond you need to watch for two things - inclusions and color in the stone. There are grades set for the amount of inclusions in any gi