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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.
Lab diamond and 9kt solid gold charms cascade from a fine trace chain.
Personalise with up to 5 letters, whether a monogram, word, or phrase of your choice. Available in 3 chain lengths: S (15cm), M (17cm) and L (19cm).
Assembled in London within 5-6 weeks.
This bracelet may be personalised with more than five letters upon request, with the option to customise the spacing of each letter. Contact our concierge to discuss your bespoke requirements.
Each Otiumberg Fine purchase arrives in our limited-edition velvet jewellery box.
Discover this design as an Initial Diamond Necklace
Lab diamond and 9kt solid gold charms cascade from a fine trace chain.
Personalise with up to 5 letters, whether a monogram, word, or phrase of your choice. Available in 3 chain lengths: S (15cm), M (17cm) and L (19cm).
Assembled in London within 5-6 weeks.
This bracelet may be personalised with more than five letters upon request, with the option to customise the spacing of each letter. Contact our concierge to discuss your bespoke requirements.
Each Otiumberg Fine purchase arrives in our limited-edition velvet jewellery box.
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.