Two complete reference charts, downloadable as PDF, to choose a pavé setting, a centre stone, or order a ring size with confidence, wherever you are in the world.
The round brilliant is the most used shape for pavé and accent stones. The weight shown is a standard reference average.
Choose a shape to display its mm / carat conversion chart.
Illustration showing relative scale between sizes, a visual complement to the chart. Real photo coming soon.
To avoid ever having two different charts on the site, the full ring size conversion (France, UK, US, Asia) lives on a single page, kept up to date.
See the size conversion chart →About 6.5 mm for a round brilliant diamond with classic proportions. A 1.5-carat measures about 7.3 mm.
About 8.0 mm for a round brilliant. A 2.5-carat measures about 8.7 mm. For other shapes, see the table by shape above.
Measure the diameter (for a round) or the length and width (for other shapes), then find the closest value in the tables above. The exact weight also depends on the depth of the stone.
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