Jewelry Size Guide: Ring, Bracelet & Necklace

01 · Rings

Find your ring size

Measure your finger circumference or the inner diameter of a ring that already fits. Enter either measurement in millimetres, centimetres or inches to see the closest international sizes.

How to measure at home

1
Choose the right moment
Measure at the end of the day, when your hands are at a natural temperature.
2
Measure finger or ring
Wrap a soft tape around your finger, or measure straight across the inside of an existing ring.
3
Allow for the knuckle
The ring should pass over your knuckle comfortably. For a wide band, consider a slightly larger size.

Many Gattrepeitho rings are adjustable. Check the product page for “Ring Size (US) · Adjustable Fit” before using a fixed-size conversion.

View the international ring size chart

International ring sizes by inner circumference and diameter
Circumference (mm)	Diameter (mm)	US / CA	UK / AU	EU / ISO	Japan	Hongkong
44.3	14.1	3	F	44	4	6
44.9	14.3	3¼	F½	45	4	6
45.6	14.5	3½	G	46	5	7
46.2	14.7	3¾	G½	46	6	8
46.8	14.9	4	H	47	6	8
47.4	15.1	4¼	H½	47	7	9
48.1	15.3	4½	I	48	7	9
48.7	15.5	4¾	I½	49	8	10
49.3	15.7	5	J	49	8	10
50.0	15.9	5¼	J½	50	9	11
50.6	16.1	5½	K	51	10	12
51.2	16.3	5¾	K½	51	10	12
51.8	16.5	6	L	52	11	13
52.5	16.7	6¼	L½	53	11	13
53.1	16.9	6½	M	53	12	14
53.7	17.1	6¾	M½	54	13½	15
54.3	17.3	7	N	54	13½	15
55.0	17.5	7¼	N½	55	14½	16
55.6	17.7	7½	O	56	14½	16
56.2	17.9	7¾	O½	56	15½	17
56.9	18.1	8	P	57	15½	17
57.5	18.3	8¼	P½	58	16½	18
58.1	18.5	8½	Q	58	16½	18
59.1	18.8	8¾	Q½	59	17½	19
59.7	19.0	9	R	60	18½	20
60.3	19.2	9¼	R½	60	18½	20
60.9	19.4	9½	S	61	19½	21
61.6	19.6	9¾	S½	62	20½	22
62.2	19.8	10	T	62	20½	22
62.8	20.0	10¼	T½	63	22	23
63.5	20.2	10½	U	64	22	23
64.1	20.4	10¾	U½	64	23	24
64.7	20.6	11	V	65	24	25
65.3	20.8	11¼	V½	65	24	25
66.0	21.0	11½	W	66	25	26
66.6	21.2	11¾	W½	67	25	26
67.2	21.4	12	X	67	26	27
67.9	21.6	12¼	X½	68	26	27
68.5	21.8	12½	Y	69	27	28
69.1	22.0	12¾	Z	69	27	28
69.7	22.2	13	Z½	70	28	29
70.4	22.4	13¼	—	70	—	30
71.0	22.6	13½	Z+1	71	—	30

Conversions are approximate because sizing systems and brand fits vary. For a fixed-size ring, professional measurement is recommended.

02 · Bracelets

Measure your bracelet fit

Measure your wrist just below the wrist bone, then choose how you would like the bracelet to sit. The result is a starting point; natural stone and strand designs may fit slightly differently.

Your fit, your preference

Sculpted: Add about 0.5 cm · sits closer to the wrist
Balanced: Add about 1 cm · comfortable everyday movement
Relaxed: Add about 1.5 cm · a looser, more fluid fit

Visual Proportion

Bead size & wearing effect

Compare bead diameters on the wrist. These images show relative visual presence; choose the proportion that suits your style.

6 to 8 mm bead bracelet worn on a wrist — **6–8 mm**Fine & delicate

8 to 10 mm bead bracelet worn on a wrist — **8–10 mm**Balanced & everyday

12 to 14 mm bead bracelet worn on a wrist — **12–14 mm**Full & noticeable

14 to 16 mm bead bracelet worn on a wrist — **14–16 mm**Bold statement

03 · Necklaces

Choose your necklace length

See where different chain lengths typically sit. The exact position varies with neck size, body proportions and pendant design.

Necklace length guide showing where different chain lengths sit when worn — Compare the wearing position before selecting your chain length.

Measuring tip

Place a soft tape or string around your neck and let it fall to your preferred position. Measure its total length, then compare it with the product’s listed chain length.

04 · Earrings

Compare earring proportions

Use these wearing references to compare stud diameter and the length of hoop or drop earrings. Ear shape and design can affect the final position.

Stud earring size comparison showing different diameters worn on the ear — **Stud earrings**Compare diameter and visual presence

Hoop and drop earring length comparison shown when worn — **Hoops & drops**Compare length and where each style falls

Fitting Notes

A few final details

Practical answers to help you choose with more confidence.

How do I measure my finger for a ring?

Wrap a soft tape or a narrow strip of paper around the finger where the ring will sit. Keep it comfortably snug, mark the overlap and measure the length in millimetres. Measure at the end of the day and make sure your chosen size can pass over the knuckle.

How should I measure my wrist for a bracelet?

Measure around your wrist just below the wrist bone with a soft tape. Keep the tape level and close to the skin without pulling tight. Then add about 0.5 cm for a close fit, 1 cm for everyday comfort or 1.5 cm for a relaxed fit.

Which bead size should I choose?

Smaller beads create a finer, lighter look, while larger beads have more visual presence. Use the wearing images as a proportion guide; your wrist size and personal style matter more than a fixed rule.

Will necklace and earring sizes look the same on everyone?

The placement in the guide is approximate. Neck size, body proportions, ear shape and pendant or earring design can change the final look, so use the images as a visual reference rather than an exact prediction.

Personal Assistance