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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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Loose Diamonds

At DiamondUK, we are committed to helping you find your perfect diamond stone which is why we have one of the largest online inventories of over 200,000 certified loose diamonds. All diamonds come with detailed information allowing you to discover the right diamond for you or your loved one. Whether you are in search of a loose diamond for a diamond engagement ring, diamond eternity ring or diamond wedding ring, DiamondUK has something for everyone. Why Purchase Loose Diamonds?

Saving Money
If you are buying loose diamonds from a wholesaler or an online diamond retailer like DiamondUK, it is extremely likely you will make a saving.

What you want
Many people opt for a loose diamond as it provides great flexibility. Instead of having dictated to you what you can and can’t have, with loose diamonds you have the ability to choose a diamond that’s right for you in terms of style, spec and investment. It is then a simple matter of choosing your setting before you finalise your dream diamond engagement ring.

Choices
Loose diamonds can be set in an assortment of diamond jewellery settings, from diamond engagement rings, diamond wedding bands to diamond eternity rings and solitaire diamond pendants.

How to find them?
Look for a company such as DiamondUK that sells only certified diamonds that have been rated by one of the five most trustworthy gemmological labs and then discover the shape and quality that fits within your budget. We have taken great care and effort with our website to help the process of purchasing a loose diamond as easy as possible.

Be Responsible
Only buy diamonds from a reliable company such as DiamondUK that has a zero-acceptance rule towards conflict diamonds and guarantees that all of its loose diamonds are conflict-free and in strict compliance with industry standards.

Our corporate philosophy is very simple: to deliver customers amazing value on service and price, accompanied by an extraordinary record of certified loose diamonds and best diamond jewellery, all with the confidentiality, safety and convenience of shopping online.

Diamond Search

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