Updated as of June 2026
Round Diamond
A round cut is the most popular and most brilliant cut, engineered to maximize sparkle. In Diamond (colorless, yellow, brown, pink, blue, Mohs 10) it keeps the color crisp and bright.
Why the round cut works for Diamond
The most popular and most brilliant cut, engineered to maximize sparkle. Diamond has the brightness to carry a round brilliant cut and throw plenty of light. At Mohs 10, Diamond holds a crisp round outline and stands up to everyday wear. Treatment to expect: typically untreated.
Other Diamond cuts
More on this stone: Diamond overview, price guide, and the round cut guide across stones.
Frequently asked questions
Does Diamond look good in a round cut?
Yes. Diamond has the brightness to carry a round brilliant cut and throw plenty of light. It is hard enough to hold a crisp outline.
How much does a round Diamond cost?
Diamond runs about $1,000 to $15,000 per carat. Shape affects price modestly, with round usually the slight premium.
What setting suits a round Diamond?
Diamond pairs well with platinum, white gold, yellow gold, rose gold. A solitaire keeps it simple.