Find your perfect size

Measure an existing ring

ring size guide lara prasseur jewelry switzerland

Select an existing ring that fits the desired finger.
Measure the internal diameter of the ring (in mm.).
Use the below chart to determine your ring size

Ring Set bestfriend hug embrace gold ring prasseur switzerland

INTERNAL DIAMETER (MM)	14.1	14.9	15.7	16.5	17.3	18.1	19.0	19.8	20.6	21.4	22.2
US/CANADA RING SIZE	3	4	5	6	7	8	9	10	11	12	13
UK/AUSTRALIA RING SIZE	F	H	J	L	N	P	R	T	V	X	Z
GERMAN RING SIZE	14	15	15 3/4	16 1/2	17 1/4	18	19	20	20 3/4	21 1/4	22

INTERNAL DIAMETER (MM)	US/CAN RING SIZE	UK/AUS RING SIZE	GERMAN RING SIZE
14.1	3	F	14
14.9	4	H	15
15.7	5	J	15 3/4
16.5	6	L	16 1/2
17.3	7	N	17 1/4
18.1	8	P	18
19	9	R	19
19.8	10	T	20
20.6	11	V	20 3/4
21.4	12	X	21 1/4
22.2	13	Z	22

ring size guide lara prasseur switzerland

Measure your finger

Wrap a strip of paper around your finger where you’d like your ring to be.
Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit.
Mark the spot where the paper meets and measure the distance with a ruler.
Use the below chart to determine your ring size

CIRCUMFERENCE (MM)	44.2	46.8	49.3	51.9	54.4	57.0	59.5	62.1	64.6	67	70
US/CANADA RING SIZE	3	4	5	6	7	8	9	10	11	12	13
UK/AUSTRALIA RING SIZE	F	H	J	L	N	P	R	T	V	X	Z
GERMAN RING SIZE	14	15	15 3/4	16 1/2	17 1/4	18	19	20	20 3/4	21 1/4	22

CIRCUM-FERENCE (MM)	US/CAN RING SIZE	UK/AUS RING SIZE	GERMAN RING SIZE
44.2	3	F	14
46.8	4	H	15
49.3	5	J	15 3/4
51.9	6	L	16 1/2
54.4	7	N	17 1/4
57	8	P	18
59.5	9	R	19
62.1	10	T	20
64.6	11	V	20 3/4
67	12	X	21 1/4
70	13	Z	22

Tips & Tricks

Measure your fingers at the end of the day when they’re at their largest.
Cold weather can shrink your fingers up to half a size, so make sure they’re warm.
Lastly, alcohol and salt can make your fingers swell, so refrain from measuring them after cocktails and appetizers.

Still unsure?

Our Customer Happiness team can help with any other questions you have about finding your best fit.

Reach out to us here