Ring size guide

Ring size chart

Our sized rings come in US sizes 6, 7 and 8, marked below. US 6 and 7 are the most common sizes for a ring finger; US 8 suits larger hands, or the index and middle fingers. SA/UK letter sizes are shown for reference.

Ring size chart in US sizes, with measurements and SA/UK letter equivalents
US size	Inside diameter	Inside circumference	SA/UK equivalent
US 3¾	14.7 mm	46.1 mm	H
US 4¼	15.1 mm	47.4 mm	I
US 4¾	15.5 mm	48.7 mm	J
US 5¼	15.9 mm	50.0 mm	K
US 5¾	16.3 mm	51.3 mm	L
US 6We stock	16.5 mm	51.9 mm	L½
US 6¼	16.7 mm	52.6 mm	M
US 6¾	17.2 mm	53.9 mm	N
US 7We stock	17.3 mm	54.4 mm	N½
US 7¼	17.5 mm	55.1 mm	O
US 7¾	18.0 mm	56.4 mm	P
US 8We stock	18.2 mm	57.0 mm	P½
US 8¼	18.3 mm	57.6 mm	Q
US 8¾	18.7 mm	58.9 mm	R
US 9¼	19.2 mm	60.2 mm	S
US 9¾	19.6 mm	61.5 mm	T

Two ways to measure at home

With a ring you already own

Choose a ring that fits
Use one you wear on the same finger, with a round inside edge.
Measure across the inside
Lay a ruler across the middle of the ring and measure the inside edge to inside edge, in millimetres.
Match it to a size
Enter the number in the finder, or compare it with the inside diameter in the chart to read off your US size.

With a strip of paper

Wrap your finger
Cut a thin strip of paper and wrap it around the base of your finger, snug but not tight.
Mark the overlap
Mark where the paper meets, then check it slides over your knuckle.
Measure the length
Lay the strip flat and measure to the mark in millimetres. That is your circumference; enter it in the finder above.

Tips for the right fit

Measure at the end of the day, when your fingers are warm and at their largest.
If your knuckle is wider than the base of your finger, measure both and choose a size between the two.
Wide bands fit more snugly than thin ones. For a wide or statement ring, consider the next size up.
Between two sizes, choose the larger one.

Not sure? Open rings are one size and adjust gently to most fingers, and unworn sized rings can be exchanged for another size within 30 days.