Updated as of June 2026
Round Ruby
A round cut is the most popular and most brilliant cut, engineered to maximize sparkle. In Ruby (red, pinkish red, Mohs 9) it brings out warm, glowing color.
Why the round cut works for Ruby
The most popular and most brilliant cut, engineered to maximize sparkle. Ruby has the brightness to carry a round brilliant cut and throw plenty of light. At Mohs 9, Ruby holds a crisp round outline and stands up to everyday wear. Treatment to expect: heat treatment.
Other Ruby cuts
More on this stone: Ruby overview, price guide, and the round cut guide across stones.
Frequently asked questions
Does Ruby look good in a round cut?
Yes. Ruby 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 Ruby cost?
Ruby runs about $100 to $5,000 per carat. Shape affects price modestly, with round usually the slight premium.
What setting suits a round Ruby?
Ruby pairs well with yellow gold, white gold, platinum. A solitaire keeps it simple.