How big is a 1 carat diamond? Our diamond sizing guide (Ct to mm)
Choosing a diamond that’s the perfect size for your engagement ring is one of the most important decisions you’ll make in the ring design process. So we’ve made a simple comparison chart to help you get a better picture of what you can expect from your diamond. This is what a round brilliant diamond, ranging from 0.60ct to 3ct, looks like next to a standard sized pencil.