13 uses -
Ends 31/3/2026
Enjoy a 20% discount on selected jewellery. Please note, this offer is not applicable to sale items, specific brands, or in combination with any other promotions. Take advantage of this opportunity to enhance your collection with exquisite pieces.
Ends 31/12/2026
10% off when you subscribe to our newsletter Discount valid on full price items only.
Ends 31/12/2026
British Diamond Company deal: 30-days return
Ends 31/12/2026
British Diamond Company deal: FREE Next Day Delivery on orders over £125 Place your order before 4pm on weekdays (Monday - Friday) and before 11:30am on Saturday to ensure your chosen jewellery pieces arrive before 1pm the next day.
Ends 31/12/2026
British Diamond Company deal: 0% Interest Free Finance | Up to 60 months Up to 60 months 0% APR representative interest free finance available apply online today for an instant decision and next day delivery. Our simple finance options allow you to spread the cost of your watch over 12, 24, 36, 48 or 60 months. 18 years old or older. Available only on items over £500. UK only.

Ends 14/1/2026

Ends 14/1/2026
Ends 4/1/2026

2 uses -
Ends 3/1/2026
Ends 2/1/2026
2 uses -
Ends 2/1/2026
Ends 2/1/2026
Ends 2/1/2026

Ends 1/1/2026

Ends 1/1/2026
| Savings | Offer Details | Valid Until |
|---|---|---|
| 20% | 20% off selected jewellery | 31 Mar 2026 |
| 10% | 10% off when you subscribe to our newsletter | 31 Dec 2026 |
britishdiamondcompany.com is the online store of the British Diamond Company, a UK‑based jeweller specialising in fine diamond jewellery, engagement rings and bespoke designs with over 40 years of experience crafting and selling high‑quality natural diamond pieces. The company offers a range of collections for men and women and provides services such as interest‑free finance and personalised bespoke design options.
The website offers a sign‑up benefit where customers who register online or subscribe to the newsletter may receive a discount on their first order. This typically takes the form of a percentage off when a valid newsletter discount code is applied at checkout.
Verified voucher codes and promo offers are periodically available for use at British Diamond Company, including codes for reductions on orders or selected jewellery when entered at checkout. These codes and deals are subject to terms, exclusions and expiration dates.
Free UK delivery has been listed among current offers, often available on orders above a specified minimum spend. Delivery and shipping details may vary by offer and should be confirmed on the site at the time of purchase.
Customers who prefer to spread payments can use the interest‑free finance option provided by British Diamond Company for qualifying purchases, with terms up to 60 months available and a minimum deposit required.
Seasonal and special promotions such as Black Friday offers, jewellery sales and discount code events have been observed on and around major shopping periods, with codes and deals updated regularly for limited times.
Signing up for the PriceReduc newsletter alerts is recommended to receive timely notifications about new British Diamond Company deals, verified voucher codes and discount offers as they become available.

Best Discount
20% Off
Promo Codes
1
Deals
4
Free Shipping Offers
2
Total Offers
5
Yes, there is currently 1 promo code available for British Diamond Company in March 2026, offering discounts of up to 20%, enabling you to save more on your purchases.
Yes, there are currently 4 deals for British Diamond Company in March 2026, offering discounts of up to 10%.
To apply a discount code on britishdiamondcompany.com's website, add items to your basket, go to checkout, and enter your code in the 'Discount Code' field. Click 'Apply' to use your discount.
Today's most popular British Diamond Company voucher code is TREAT20 with this offer: 20% off selected jewellery ending on 3/31/2026
Yes British Diamond Company is offering Free Delivery and especially this deal: FREE Next Day Delivery on orders over £125
This offer of free shipping is valid for a minimum order of £125
Yes, British Diamond Company offers 10% discount to subscribers of its newsletter.
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