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Ring Sizing Guide

The Maison offers two methods to determine your finger size and ensure the right fit for your ring.

Editorial portrait of model with hand resting against her head, looking to the right, showcasing four jadeite and diamond rings worn across the knuckles — The Oval Mosaic Ring, The Trilogy Oval Cabochon Ring, The Orbit Ring in triangular bypass setting, and The Cylinder Knot Ring — with only the diamond briolette of The Cylinder Drop Earrings visible, demonstrating the pieces' capacity for layered daily wear.

Ring Size Guide

Circumference (mm) Diameter (mm) Hong Kong Europe Mainland China US & Canada UK Japan
43.3 13.8 5 43 3.0 2.75 F ½ 3
44.3 14.1 6 44 4 3 G 4
45.5 14.5 7 45 5.5 3.5 H 5
46.5 14.8 8 46 6.5 3.75 H ½ 6
47.7 15.2 9 47 8 4.25 I ½ 7
48.7 15.5 10 48 9 4.75 J ½ 8
49.9 15.9 11 49 10 5.25 K 9
50.9 16.2 12 50 11 5.5 L 10
52.1 16.6 13 52 12 6 L ½ 11
53.1 16.9 14 53 13 6.5 M ½ 12
54.3 17.3 15 54 14 7 N ½ 13
55.6 17.7 16 55 15.5 7.5 O 14.5
56.5 18.0 17 56 16.5 7.75 P 15.5
57.5 18.3 18 57 17.5 8.25 P ½ 16.5
58.7 18.7 19 58 19 8.75 Q ½ 17.5
59.7 19.0 20 59 20 9 R 18.5
60.9 19.4 21 60 21 9.5 S 19.5
61.9 19.7 22 61 22 10 S ½ 20.5
63.1 20.1 23 63 23 10.25 T ½ 22
64.1 20.4 24 64 24 10.75 U ½ 23
65.3 20.8 25 65 25 11.25 V 24
66.3 21.1 26 66 26 11.5 W 25
67.5 21.5 27 67 27.5 12 W ½ 26
68.5 21.8 28 68 28.5 12.5 X ½ 27
69.7 22.2 29 69 30 12.75 Y 28
70.7 22.5 30 70 31 13.25

Concierge Support

If you remain uncertain after measuring, our Concierge team can advise on fit, knuckle clearance, or piece-specific constraints.

Monday–Saturday, 10:00–20:00 HKT

Messages received outside these hours will be answered the following business day.