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Size Guide

Please note that our size charts are only to be used as a guide, as fit can vary due to hand a finger shape.

  • 46
  • 47
  • 48
  • 49
  • 49.5
  • 50
  • 50.5
  • 51
  • 52
  • 53
  • 53.5
  • 54
  • 54.5
  • 55
  • 55.5
  • 56
  • 57
  • 58
  • 58.5
  • 59
  • 60
  • 8
  • 8/9
  • 9
  • 10
  • 10/11
  • 11
  • 12
  • 12/13
  • 13
  • 14
  • 14/15
  • 15
  • 15/16
  • 16
  • 17
  • 17/18
  • 18
  • 18/19
  • 19
  • 19/20
  • 20
  • 4
  • 4 1/4
  • 4 1/2
  • 4 3/4
  • 5
  • 5 1/4
  • 5 1/2
  • 5 3/4
  • 6
  • 6 1/4
  • 6 1/2
  • 6 3/4
  • 7
  • 7 1/4
  • 7 1/2
  • 7 3/4
  • 8
  • 8 1/4
  • 8 1/2
  • 8 3/4
  • 9
  • H 1/2
  • I
  • I 1/2
  • J
  • J 1/2
  • K
  • K 1/2
  • L
  • L 1/2
  • M
  • M 1/2
  • N
  • N 1/2
  • O
  • O 1/2
  • P
  • P 1/2
  • Q
  • Q 1/2
  • R
  • R 1/2
  • 46
  • 47
  • 48
  • 49
  • 49.5
  • 50
  • 50.5
  • 51
  • 52
  • 53
  • 53.5
  • 54
  • 54.5
  • 55
  • 55.5
  • 56
  • 57
  • 58
  • 58.5
  • 59
  • 60
  • 8
  • 8/9
  • 9
  • 10
  • 10/11
  • 11
  • 12
  • 12/13
  • 13
  • 14
  • 14/15
  • 15
  • 15/16
  • 16
  • 17
  • 17/18
  • 18
  • 18/19
  • 19
  • 19/20
  • 20
  • 4
  • 4 1/4
  • 4 1/2
  • 4 3/4
  • 5
  • 5 1/4
  • 5 1/2
  • 5 3/4
  • 6
  • 6 1/4
  • 6 1/2
  • 6 3/4
  • 7
  • 7 1/4
  • 7 1/2
  • 7 3/4
  • 8
  • 8 1/4
  • 8 1/2
  • 8 3/4
  • 9
  • H 1/2
  • I
  • I 1/2
  • J
  • J 1/2
  • K
  • K 1/2
  • L
  • L 1/2
  • M
  • M 1/2
  • N
  • N 1/2
  • O
  • O 1/2
  • P
  • P 1/2
  • Q
  • Q 1/2
  • R
  • R 1/2

Still unsure of your rings size?

Try Our Virtual Ring Sizer
Size Guide Back

Virtual Ring Sizer

Step 1

Place your credit card on the screen according to the template below. Use the + and - buttons to adjust the slider until the bronze lines match the height of your card.

Place Card
Here

+ -
Apply
Back

Virtual Ring Sizer

Step 2

Place your ring on the circle below. Use the + and - buttons to adjust the size of the circle until you cant see any of the grey within the ring.

+ -
Apply
Back

Virtual Ring Sizer

Congratulations

Please find our recommended rings size below.

K
Rings size

We reccommend the UK size above

Continue Shopping

Necklace Size Guide

Please note that our size charts are only to be used as a guide.

  • 45 TEST mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J
  • 45 TEST mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J

Bracelets Size Guide

Please note that our size charts are only to be used as a guide.

  • 45 mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J
  • 45 mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J

Earrings Size Guide

Please note that our size charts are only to be used as a guide.

  • 45 mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J
  • 45 mm
  • -
  • 46mm
  • -
  • 47mm
  • 48mm
  • -
  • 45
  • 44
  • 46
  • 38
  • 50
  • 52
  • 54
  • F 1/2
  • G
  • G 1/2
  • H 1/2
  • I
  • I 1/2
  • J

ONCE has precious jewellery for everyone

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Designers

All at Once, find iconic brands as well as undiscovered gems. 

Theo Fennell

Maison Auclert

Hannah Martin

 

Elizabeth Gage

 

Roberto Demeglio

Pasquale Bruni

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Everyone’s future needs to include fine jewellery. At Once, we’ve checked the astrological charts, from Cancer to Sagittarius, to divine which jewels are sparkling in your zodiac this year.

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Once Fine Jewellery Horoscopes | Capricorn to Gemini

Find out what fine jewellery lies in your future with Once’s horoscopes. From Capricorn to Gemini, we peer into our crystal ball to discover the jewels that are your destiny.

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