Fancy colourBrilliant cuts
Round Brilliant diamonds
The benchmark of sparkle
The round brilliant has 57–58 facets engineered for optimum light return. It is the most requested shape for engagement rings, studs and tennis pieces, and the easiest to match in pairs and layouts.
- Carat range
- 0.003 ct to 20 ct+
- Ideal length-to-width
- 1.00–1.01
- Facets
- 57–58
- Best for
- Solitaires, studs, eternity bands, tennis bracelets
- Available as
- Natural, lab-grown
- Grading
- Lab report where graded; grading on request
- HD video of your exact stone
- Insured worldwide delivery
Round Brilliant diamonds on the tray today
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About round brilliant diamonds
What sizes are round brilliant diamonds available in?
We supply round brilliant diamonds from 0.003 ct to 20 ct+, natural or lab-grown, as single stones, matched pairs or sets. Sizes outside that range can often be sourced or cut to order.
What is the ideal ratio for a round brilliant diamond?
Most clients prefer a length-to-width ratio of 1.00–1.01. Tell us whether you prefer a slimmer or fuller look and we filter stones to match.
Is a round brilliant available in lab-grown?
Yes. We offer round brilliant diamonds in both natural and lab-grown, each with an independent grading report that states its origin.
What settings suit a round brilliant?
Round Brilliant diamonds are especially popular for solitaires, studs, eternity bands, tennis bracelets. We design settings around the exact measurements of your stone.