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Welcome to Diamonduk.com

+44 (0)20 3795 0775
Call us Monday - Saturday: 8:30 am - 6:00 pm

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About Us

A New Epoch of Diamond Tradition
DiamondUK is a leading customer-centric online Diamond house; that thinks about you and the reasons behind your purchase – designing timeless pieces that will leave you awe-struck and mesmerised with its sparkling beauty. We offer diamonds in all sizes and shapes, from the customary round dazzling cut to our striking romance cut. No matter what your preference, DiamondUK has the shape for you.

We have an in-house team of master craftsmen and highly-skilled designers dedicated to creating exclusive diamond eternity rings, diamond wedding bands, diamond engagement rings and distinctively designed solitaire diamond pendants, earrings and bracelets. We offer everything from inspired collections that reflect global trends to timeless classics you'll want to wear again and again.

Throughout its history, DiamondUK has driven change and set standards in the jewellery industry. With our commitment to simplified credit options, certified loose diamonds, designs that captivates from the first glance and convenient shopping options, we continue to achieve the hallmark of ‘Best Diamond Company in the United Kingdom’. In addition, we exhale a consultative approach, enlightening our customers on diamonds thus helping them make a well-versed decision about their diamond purchase. That is the DiamondUK difference!

We're focused on all the special details that makes a diamond shine - the cut, clarity, colour and carat – so that no matter what your budget or personal taste, you'll get a Diamond ringthat brings out your shine. Besides, we always give credibility along with our diamonds, so peace of mind is at all times, part of our commitment to you.

Our exclusive women platinum wedding band, solitaire engagement rings, Diamond encrusted eternity rings, pre-set wedding rings as well as dazzling pendant and earring designs feature these exceptional certified diamonds. Perfectly cut and hand-set with care, each diamond emits spectacular brilliance and incredible clarity.

Create your Own Ring
One of the biggest advantages of shopping at DiamondUK is our unique ‘Create your Own Ring’ feature which allows you to create your own diamond engagement ring suiting your taste and budget. The process is as simple as:

Choose your diamond > Choose your setting > Complete your ring

With all shipping fully insured, your personalised ring will arrive safely at your doorstep and at your convenience.

DiamondUK is a brand of Ram ParkashSunderdass& Sons (RPS), a family of fine jewellers specialising in gold, diamonds, gemstones, platinum and watches. With a heritage spanning over 50 years, RPS delivers unrivalled legacy along with buying power that ensures all brands within the group delivers unmatched competitiveness.

Ring Size Guide

International ring sizes

Other countries use a different scale to the U.K; you can use the table below to help you decide which size you need

 Circumference (mm) Diameter (mm) Europe UK & Australia US & Canada
44.2 14.1 44 3
44.8 14.3 45 G  
45.5 14.5  
46.1 14.7 46 H  
46.8 14.9 47 4
47.4 15.1   I  
48.0 15.3 48 4½<
48.7 15.5   J  
49.3 15.7 49 5
50.0 15.9 50 K  
50.6 16.1  
51.2 16.3 51 L  
51.9 16.5 52 6
52.5 16.7   M  
53.1 16.9 53
53.8 17.1   N  
54.4 17.3 54 7
55.1 17.5 55 O  
55.7 17.7  
56.3 17.9 56 P  
57.0 18.1 57 8
57.2 18.2      
57.6 18.3   Q  
58.3 18.5 58
58.9 18.8 59 R  
59.5 19.0   9
60.2 19.2 60 S  
60.8 19.4 61
61.4 19.6   T  
62.1 19.8 62 10
62.7 20.0   U  
63.4 20.2 63 10½
64.0 20.4 64 V  
64.6 20.6   11
65.3 20.8 65 W  
65.9 21.0 66 11½
66.6 21.2   X  
67.2 21.4 67 12
67.8 21.6   Y  
68.5 21.8 68 Z 12½
69.1 22.0 69 Z  
69.7 22.2 70   13
70.4 22.4   Z+1  
71.0 22.6   Z+2 13½