You can measure your ring size in a number of ways. In the UK it is measured alphabetically, in the US it is done numerically, or you can measure the Internal Diameter or Circumference.

Our guide is on hand to take the guesswork out of ring shopping.

Take an existing ring and measure its diameter across - or, measure around your finger - and then look up the corresponding ring size.

RING DIAMETER	FINGER CIRCUMFERENCE	RING SIZE
(mm)	(mm)	UK	US	EU	China
14.8	46.5	H	3 ^3/4	46 ^1/2	7
15.2	47.8	I	4 ^1/8	47 ^1/2	8
15.6	49.0	J	4 ^5/8	48 ^1/2	9
16.0	50.3	K	5 ^1/4	50	10
16.4	51.5	L	5 ^1/2	51	11
16.8	52.8	M	6	52 ^1/2	12
17.2	54.0	N	6 ^1/2	53 ^1/2	13
17.4	54.7	O	7	55	14
18.0	56.6	P	7 ^1/2	56	15
18.4	57.8	Q	8	57 ^1/2	16
19.0	59.1	R	8 ^5/8	59	17

How do I measure my ring finger?

- Wrap a narrow strip of paper or piece of string comfortably around your intended finger.
- Mark the end (where it meets) and measure the distance. This is the circumference.
- Match the measurement to the circumference column in the above conversion chart. If it falls between 2 sizes, we advise you to order the larger sizes.

How do I measure a ring I already own?

How to measure the Inside Diameter of your Ring:
- Select one of your rings that properly fits the intended finger.
- Measure the INSIDE diameter of the ring using our helpful Printable Ring Sizing Guide.
- Match the measurement of your ring against one of the images. If it falls somewhere in between two sizes then you should opt for the larger size.

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Gemstone Sphere Clip-On Pendant

Name: Gemstone Sphere Clip-On Pendant
Brand: Missoma
SKU: CR-G-P14-BX
Price: 127.0 USD
Availability: InStock

$127

18ct Gold Plated, Black Onyx

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2 Year Warranty
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Metal: 18ct Gold Plated On Brass
Stone: Black Onyx
Dimensions: 39mm x 15.2mm (includes clip)
Weight: 6.2g
Turn on the charm. Customize your favorite chain with this clip-on pendant featuring a striking black onyx gemstone known for protection sphere anchored by signature double ridging. A versatile piece to transform your layering.

Product code: CR-G-P14-BX
This piece should be stored in a cool, dry place and cleaned carefully with a soft non-abrasive cloth to maintain shine.
Read our jewelry care guide to find out how best to care for your jewelry.