How to find your ring size

Choosing the right ring size can be a little difficult; whether it's for yourself, a partner or a friend. To make things easy, just follow our tools and tips on how to pick the perfect size.

The most commonly purchased women’s ring sizes are a UK size J & K (small) and a UK L & M (medium).

UK / AUS	US	EU	Inside Diameter mm	Circ. mm
E	2 1/2	42	13.7	42.9
F	3	44	14.1	44.2
G	3.5	45	14.5	45.5
H	4	46	14.9	46.7
I	4.5	48	15.3	48
J	5	49	15.5	48.7
K	5.5	50	15.9	49.9
L	6	51	16.3	51.2
M	6.5	53	16.7	52.5
N	7	54	17.1	53.8
O	7.5	55	17.5	55
P	8	56	17.9	56.3
Q	8 1/4	57 1/2	18.3	57.6
Still not sure?Take a look at our more in-depth size guide here

18mm Silver Endless Hoop, sold as a single hoop.

Designed to last when worn all day, every day with a secure endless closure. Your new jewellery staple.

Pairs perfectly with our range of charms or simply on its own.

sterling silver
18mm diameter
0.8mm thickness
secure endless closure

About Sterling Silver

Our recycled sterling silver is a very durable and beautiful metal. The metal is made up of 92.5% pure silver with the addition of an anti-tarnish solution that keeps the design pristine for years to come.

Recycled Gold & Silver

Our precious raw metals are from 100% recycled sources certified for their quality by the Responsible Jewellery Council and London Bullion Market Association. By opting for recycled metals, we gain greater transparency over our source and lighten our CO2 footprint by over 60%.
Responsibly Handcrafted

We have worked with the same specialist jewellery workshops from the very beginning. Our Indian and Thai workshops employ skilled craftsmen to hand make every element of our pieces. We know the teams well and have both workshops regularly audited. We love to share that our Thai workshop is made up of 70% women, with an exclusively female management.
Circular Mindset

We are committed to circularity and believe jewellery is a unique format with which this is truly possible. From our non-seasonal design and long-lasting recycled raw materials to our recycling and repairs initiative, we hope to encourage a new circular mind-set amongst our peers and consumers.
Say no to plastic

We have been working to eliminate the plastic we don’t need in our supply chain, and innovate on the plastic we do need so that it is safely reused, recycled or composted. Our packaging has no foam or plastic, and we receive each piece from our workshops in biodegradable cellulose film bags.
Carbon Neutral

By using a Life Cycle Assessment format, we have calculated the carbon footprint of our designs from workshop to customer. This approach gives us the data we need to lighten our footprint and off-set accurately.

UK (mainland)

Learn more

Standard	2-3 working days	£5.40
Orders over £150	2-3 working days	FREE
Next Day	Order before 12pm Mon-Fri	£8
Same Day	Order before 12pm Mon-Fri (London only)	£20

Free UK Returns

We offer free and easy UK returns. All returns and exchanges must be sent back using our UK Returns Portal. Please connect with us on chat or email hello@otiumberg.com if you have any problems booking your return.

International Delivery

Learn more

We have partnered with Global-e for our international deliveries to ensure that every order is sent efficiently and quickly. There will be no additional charges for import duties & taxes on delivery, as these will be included in the price of the product or optioned to pre-pay at checkout. Please visit our Delivery page for more information.

International Returns

We accept International returns within 14 days of receipt. We are unable at this moment to cover the return shipping cost. Learn More.

*Please note: Engraved & Made To Order items are non-returnable / non-refundable unless faulty.

As a family business, quality and trust are at our core.

Thats why each product is protected with our 1 year warranty, with an easy to access repair and re-plating service beyond that.

For detailed care and cleaning tips, visit our dedicated Materials & Care page.

18mm Silver Endless Hoop
Sterling silver

£30.00

~~£49.00~~

See details See details

Single

Pair

Recycled Raw
Materials

1 Year
Warranty

We are
Carbon Neutral

Global Shipping
& Easy Returns

Plastic-Free
Packaging

Responsibly
Handmade

Recycled Raw
Materials

1 Year
Warranty

We are
Carbon Neutral

Global Shipping
& Easy Returns

Plastic-Free
Packaging

Responsibly
Handmade

New Arrivals

Give 20%, Get 20%

The Cut

Alex Eagle x Otiumberg

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About Sterling Silver

UK (mainland)

International Delivery

18mm Silver Endless Hoop
Sterling silver

Join us

20% off for you and a friend

Concierge & Appointments

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About Sterling Silver

18mm Silver Endless Hoop Sterling silver

Join us

20% off for you and a friend

Concierge & Appointments

18mm Silver Endless Hoop
Sterling silver