Please note all prices listed are based on cash prices and are exclusive of VAT. Prices for precious metal products are an estimate only and can vary slightly depending upon the metal price, the actual weight and the cutting tolerances which we are able to achieve. Bullion prices are based on 10gm.
Loose Diamonds
Discover a range of large and small loose diamonds for sale at Cooksongold – featuring various shapes, sizes and carats – to complement your latest jewellery designs. Our best quality diamonds have been carefully sourced to ensure that our customers receive distinctive stones to work with. These are available in points ranging from 1.00 to 20.00 and of varying diamond stone sizes, varying from 1.3 to 3.8mm. We also stock a range of round and square loose diamonds, as well as other shapes – such as marquise, oval, and pear diamonds – to suit your jewellery making needs. Look through our collection of quality diamonds and you’ll be sure to find a stone to suit your jewellery designs.
High-Quality Diamonds
The best quality diamonds are formed under high temperatures and pressure, 50 miles underground. They are the hardest minerals on earth with exceptional lustre and brilliant fire, making them the most sought after of all gemstones. We stock both princess and round cut loose diamonds. We ensure we stock the best quality diamonds by assessing them according to four factors known as the 4 C’s – colour, clarity, carat weight and cut. Cooksongold will not knowingly sell ‘conflict diamonds’ and will always try to undertake reasonable measures to help prevent the sale of ‘conflict diamonds’. All of our loose diamond suppliers actively take part in the Kimberley Process Certification Scheme – ensuring legitimate trade in the best quality diamonds.
Buy Diamonds for Jewellery Making
Diamonds are the most popular stone for engagement rings and anniversary gifts. So take a look at our range of quality diamonds for sale and you will be sure to find something that makes your jewellery designs sparkle. For more information about the precious stone, and what to do with it, check out 'Diamonds' – a comprehensive and informative book of essential knowledge about the diamond industry by Marijan Dundek – from our jewellery making book range.
Browse our full range of large and small loose diamonds for sale – including various small diamonds for jewellery making, available in multiple carats and styles.
For more information on our range of loose diamonds, or to find out more about any of our other gemstones, contact our expert team members today. Our advisors are experts in jewellery making and will be happy to help you on your hunt for loose diamonds. Alternatively, browse our full range of gemstones today.
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Ways to contact us
0345 100 1122 Email
0345 100 1122 Email
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© 2025 Cookson Precious Metals Ltd. VAT Registration No. GB161 8062 21. Registered in England no. 2775187. Registered Office: 59-83 Vittoria Street, Birmingham, B1 3NZ
Tel: 0345 100 1122 or 0121 200 2120 Fax: 0121 212 6456