The paper strip method

You don't need a ring sizer. You need a strip of paper and a ruler.

  1. Cut a strip of paper about 5 mm wide.
  2. Wrap it snugly around the base of the finger — snug enough that it would need a small push over the knuckle.
  3. Mark where the paper overlaps, unwrap it, and measure the length in millimetres.
  4. That length is your circumference. Find it in the table below.

Two rules that matter more than the measurement: measure at the end of the day, when fingers are at their largest, and if you fall between two sizes, take the larger one. A ring that's slightly loose is wearable. One that's slightly tight is not.

Ring sizes
USUKEUInside diameterCircumference
54915.7 mm49.3 mm
65216.5 mm51.9 mm
75417.3 mm54.4 mm
85718.1 mm57.0 mm
95918.9 mm59.5 mm
106219.8 mm62.1 mm
116420.6 mm64.6 mm
126721.4 mm67.2 mm
Necklace lengths
LengthNameWhere it sits
35–37 cm / 14"ChokerClose around the base of the neck
40–42 cm / 16"PrincessAt the collarbone — our most popular length
45–47 cm / 18"MatineeJust below the collarbone; layers well over a neckline
55–60 cm / 22–24"OperaMid-chest; the long layer in a stack
Bracelets & anklets
SizeBracelet (wrist)Anklet (ankle)
Small14–15 cm21–22 cm
Medium16–17 cm23–24 cm
Large18–19 cm25–26 cm

Measure snugly around the wrist or ankle, then add roughly 1.5–2 cm for a comfortable drape.

Sizing questions

I'm between two ring sizes — which do I take?

The larger one. Fingers swell with heat, salt and exercise, and a ring that only fits in the morning gets worn less. Wide bands also feel tighter than thin ones, so size up if the band is over 6 mm.

Does my ring size change?

Yes, by up to half a size across a day and more across a year. Heat, salt, exercise, flights, pregnancy and temperature all move it. Measure warm and rested rather than cold and first thing.

What necklace length should I buy as a gift?

40–42 cm (16") is the safest choice — it sits at the collarbone and suits nearly every neckline. If they already wear one necklace daily, a 45–47 cm piece layers under it without tangling.

Can Louryx pieces be resized?

Stainless steel can't be resized the way solid gold can — the plating won't survive the work. That's why we'd rather you measured twice, and why exchanges within 30 days on unworn pieces are straightforward.

Measured and still unsure? Send us the millimetres and we'll tell you which size to order. Contact the team.