Wrap
Wrap a narrow strip of paper around the base of the finger. Keep it comfortably snug, not tight.
JARREAUX · A guide to considered choices
A considered guide to finding something extraordinary.
01 / Find your fit
Use the circles as a starting point. For the most reliable fit, measure at the end of the day when your hands are warm.
UK I15.2 mm
UK J15.5 mm
UK K15.9 mm
UK L16.3 mm
UK M16.7 mm
UK N17.1 mm
UK O17.5 mm
UK P17.9 mm
UK Q18.3 mm
UK R18.7 mm
UK S19.1 mm
UK T19.5 mm
UK U19.9 mm
UK V20.3 mm
UK W20.7 mm
UK X21.1 mm
UK Y21.5 mm
UK Z22.0 mm
Print at 100% scale with “fit to page” disabled. Check the calibration reference on your printed page with a ruler. Place a ring you already wear over the circles; its inner edge should align with the outline. If you fall between sizes, we recommend the larger size. Ring width and setting style can affect fit.
02 / Measure at home
A quiet moment and a strip of paper are all you need.
Wrap a narrow strip of paper around the base of the finger. Keep it comfortably snug, not tight.
Mark where the paper meets, then lay it flat and measure the length in millimetres.
Compare your measurement with a trusted UK ring-size chart. Repeat once to confirm your result.
03 / Understand the stone
The 4Cs describe a diamond’s character. Each stone is individual; our selection balances beauty, presence and considered sourcing.
The precision of a diamond’s proportions and facets, shaping its light.
A scale describing how colourless a white diamond appears.
Natural inclusions and blemishes, assessed under magnification.
A measure of weight, not visual size; proportions influence presence.
04 / Choose a silhouette
Distinctive cuts bring their own geometry, brilliance and point of view.
The considered fit
A considered fit is part of the pleasure of wearing a ring. Use this guide as a starting point, then let our team help you find the size that feels entirely your own.
Wrap a narrow strip of paper around the base of the finger. Mark where the ends meet, then measure the length in millimetres for circumference.
Measure at the end of the day, when fingers are warm, and ensure the ring can pass comfortably over the knuckle. For the most precise fit, we recommend a professional sizing.
| UK size | US size | Inner diameter | Circumference |
|---|---|---|---|
| H | 4 | 14.8 mm | 46.5 mm |
| J | 4.75 | 15.5 mm | 48.7 mm |
| L | 5.75 | 16.3 mm | 51.2 mm |
| N | 6.75 | 17.1 mm | 53.8 mm |
| P | 7.75 | 17.9 mm | 56.3 mm |
| R | 8.75 | 18.7 mm | 58.9 mm |
| T | 9.5 | 19.5 mm | 61.4 mm |
Between sizes, or choosing a gift? Our specialists are here to help.