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Size guide
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
Please send your return to us within 14 days of making your order. Bespoke and personalised items are not
eligible for returns. See our returns page for more information.
Customer Care
Our dedicated customer experience team are always on hand to help.
Otiumberg HQ
Metal Box Factory,
30 Great Guildford Street,
London,
SE1 0HS,
United Kingdom
Packaging & Gift Wrap
Each order is packaged in our sustainable white pouch and box as standard, which look beautiful whilst also
being kind to the environment.
Alternatively our gift wrap offers a special moment, with elegantly tied brown ribbon, gift bag and handwritten
notecard featuring your personal message.
All elements of our packaging are responsibly made using carefully selected sustainable materials including
raime, FSC and recycled paper, no plastic or foam included.
Please note: our boxes are not intended for storage of your jewellery. Please recycle your box & store your
jewellery in the internal fabric pouch provided.
Jewellery Care Kit
L£1,898,000.00L£3,796,000.00
Details
Even the best of materials need some loving care. Meet the Otiumberg jewellery care kit designed to clean, brighten and restore shine to your jewellery.
The kit includes:
A specially formulated solution to clean your Otiumberg pieces.
Microfibre cloth for your vermeil and silver
Reusable polishing cloth for your gold
Soft eco-friendly bristle toothbrush
For further guidance of how to use the kit visit our Materials & Care guide.
Even the best of materials need some loving care. Meet the Otiumberg jewellery care kit designed to clean, brighten and restore shine to your jewellery.
The kit includes:
A specially formulated solution to clean your Otiumberg pieces.
Microfibre cloth for your vermeil and silver
Reusable polishing cloth for your gold
Soft eco-friendly bristle toothbrush
For further guidance of how to use the kit visit our Materials & Care guide.
OT0029-2046
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Global Delivery & Returns
Responsible & Sustainable Practices
As a B Corp certified business, we are dedicated to operating responsibly and hold an unwavering
commitment to always do better. From our recycled and single mine origin precious metals, to our plastic
policy and workshop relationships, we truly care about our impact.