The global destination to buy fine jewellery online.

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

GBP

Free shipping worldwide
Free returns within 14 days
Personal Shopping for everyone

Most coveted

Find your forever piece with our selection of trending designs

Add to Wish List JEM Octogone, 18-karat white gold and diamond ring
As low as £2,164.80

Add to Wish List Ileana Makri Honey, 18-karat white gold and diamond stud
£6,708.63

Add to Wish List Dauphin 18-karat white gold and diamond ring
As low as £7,431.25

Add to Wish List Boodles Be Boodles, 18-karat white gold, platinum, diamond and pearl necklace
£11,275.00

Once Horoscopes

Once Fine Jewellery Horoscopes | Cancer - Sagittarius

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.

Once Horoscopes

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.

Our inspiration

Every piece has a story. Tell us yours.

Follow Us on Instagram

Size Guide

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

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

+ -

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.

+ -

Back

Virtual Ring Sizer

Congratulations

Please find our recommended rings size below.

K

Rings size

We reccommend the UK size above