Diamond size tool
See what a diamond might look like on a hand.
Try round, oval, pear, emerald and marquise shapes. Use the measurements from a grading report when you have them. Round diamonds can also be estimated from carat.
Your size: This round diamond is 6.40 mm wide, shown on an illustrated left hand.
| Diamond | Shape | Measurements | Based on | Likely range |
|---|---|---|---|---|
| Your diamond | Round | 6.40 mm | Your measurement | Uses entered measurements |
Keep in mind: this is a size guide. It does not simulate sparkle, setting height or your exact anatomy. Fancy shapes vary in outline and facet pattern even when their measurements match. Carat estimates are available for round diamonds only.
Using the result
Use it as a guide rather than an exact try-on.
The tool helps you get a feel for size. Adjust the ring size, band width and hand proportion to make the illustration more useful.
Round diamonds
Use the average width from the report. If you only know carat, we can show a labelled estimate.
Longer shapes
Enter the actual length and width. Carat alone is too unreliable for these outlines.
Choosing between two
Tap “Compare another diamond” for a side-by-side view.