Size Guide

Rings

We make your ring in your size — we do not stretch it to fit afterwards. So it is worth two minutes to get this right.

Size	Inner Ømm	UK · AU	EU
US 3½on request	14.47	G½	45
US 4	14.88	H½	47
US 4½	15.29	I½	48
US 5	15.69	J½	49
US 5½	16.10	K½	51
US 6 our reference size	16.51	L½	52
US 6½	16.91	M½	53
US 7	17.32	N½	54
US 7½	17.73	O½	56
US 8	18.13	P½	57
US 8½	18.54	Q½	58
US 9on request	18.95	R½	60
US 9½on request	19.35	S½	61
US 10on request	19.76	T½	62

Sizes in bold are made as standard; larger sizes are made on request. Gram weights and stone counts on each product page are quoted at our reference size, US 6.

Three ways to find your size

Measure a ring you already wearMeasure the inner diameter with a ruler — inside edge to inside edge. Not the outer edge, and not across the setting.

Print our ring sizerPrint at 100%, no page fitting. Lay a bank card on the calibration bar to check the scale before you use it — if the card does not reach the mark, the print is scaled and every size on the sheet is wrong.

Ask usSend us the measurement and we will tell you which size to take. We would rather answer a question than remake a ring.

Before you measure

Measure at the end of the day, with warm hands. A finger moves about a quarter of a size between a cold morning and a warm evening — that is the single most common reason a ring arrives wrong.

Measure the hand the ring is for; your dominant hand is slightly larger. If your knuckle is wider than the base of your finger, measure both and take a size in between. Take three readings and use the one that repeats, not the smallest.

Do not use string. String stretches, and a stretched reading is a ring that falls off.

Wide bands sit tighter

Our sizes are cut on a 3 mm band. A wider band grips more of the finger, so:

Up to 3 mm — no adjustment
4–5 mm — a quarter size up
6–7 mm — a half size up
8 mm and over — a half to three-quarters up

The width of every piece is on its product page. If you are between two sizes, take the larger one — a loose ring can be adjusted, a tight one cannot be worn at all.

Bracelets

A bracelet has no single right size. It has a fit you prefer.

Measure the narrowest part of your wrist, just below the wrist bone. Then add for the fit you want.

Tennis

wrist + 1 – 1.5 cm

Sits close. A tennis bracelet that hangs loose turns over on the wrist and the stones end up underneath.

Chain

wrist + 2 – 2.5 cm

Meant to drape. You should be able to slide one finger underneath.

Your wristcm	Tennis	Chain
13.0 – 14.0	15 cm	16 cm
14.0 – 15.0	16 cm	17 cm
15.0 – 16.0	17 cm	18 cm
16.0 – 17.0	18 cm	19 cm
17.0 – 18.0	19 cm	20 cm

Lengths are made in 1 cm steps from 15 to 19 cm. Éridan Petite and Éridan Grande also come in 20 cm, and The Lune is made in half steps from 15.5 to 19.5 cm. The lengths for each design are listed on its product page.

Necklaces

Each necklace is made in two lengths. Where the chain sits changes how the piece reads.

Two necklaces about 5 cm apart layer well — a 40 cm and a 45 cm read as two clear lines rather than one thick one.

If the size is wrong

One free resizing within two years, on rings that can be resized.

Full eternity bands and rings set with stones all the way around cannot be resized — cutting one open breaks the line of the setting. For those we remake the piece at the correct size. Tell us and we will explain what that costs. See Seolune Care.