Guides

Ring sizing

Getting the size right, and what happens if it is not.

Finding your size

We make rings in US sizes 3 to 13, in quarter steps. If you are unsure, choose “I don’t know my size” and we will be in touch to confirm it before your ring is made.

Fingers change through the day and through the year. Measure in the evening, at room temperature, and if you fall between sizes go up.

US ring size chart

Inside diameter and inner circumference of the ring. Quarter sizes sit halfway between the rows.

US size	Inside diameter	Inner circumference
3	14.1 mm	44.2 mm
3.5	14.5 mm	45.5 mm
4	14.9 mm	46.8 mm
4.5	15.3 mm	48.0 mm
5	15.7 mm	49.3 mm
5.5	16.1 mm	50.6 mm
6	16.5 mm	51.9 mm
6.5	16.9 mm	53.1 mm
7	17.3 mm	54.4 mm
7.5	17.7 mm	55.7 mm
8	18.1 mm	57.0 mm
8.5	18.5 mm	58.2 mm
9	18.9 mm	59.5 mm
9.5	19.4 mm	60.8 mm
10	19.8 mm	62.1 mm
10.5	20.2 mm	63.3 mm
11	20.6 mm	64.6 mm
11.5	21.0 mm	65.9 mm
12	21.4 mm	67.2 mm
12.5	21.8 mm	68.5 mm
13	22.2 mm	69.7 mm

If it does not fit

Every piece includes one free resize within 60 days of delivery. A ring or band within one size is resized; a bigger change is remade at the new size, in about 10–15 days. After that, 3-Year, 5-Year and Lifetime Care include unlimited resizing — you pay only the shipping.

Full eternity bands and some patterned profiles cannot be resized and are remade instead — we will say so before you order.

Not sure?

Send us a message and we will talk it through.