This offer is for shoppers in the United Kingdom, not the US.

Enjoy Flat 23% OFF On Sitewide

Enjoy 23% OFF sitewide on certified diamond jewellery crafted in Hatton Garden, London. Shop unique designs in UK hallmarked gold. Use code WIN23 at checkout.

Ends Nov 1, 2026

Is it still working?

Listed by Finediam 11 minutes ago

It has not passed all of our checks in the last few hours (for example, a shopper reported a problem, or the brand's site was slow to answer). It may still work: check the price drops before you pay.

Ends Nov 1, 2026, as set by Finediam

How we check offers

Vouchrs is not Finediam's store. We list the offers Finediam publishes through an affiliate network, and we may earn a commission if you buy after following our link. You pay Finediam's normal price.

How to use this code

1. Copy the code
Press Copy code above. WIN23 goes to your clipboard and we open Finediam in this tab.
2. Fill your basket
Add what you want at Finediam. The code only shows its value at the payment step, so ignore the running total until then.
3. Paste it at checkout
Look for a box marked “discount code”, “promo code” or “voucher” near the payment section, paste, and apply. Most shops have it collapsed under a link, so it is easy to miss.
4. If it is refused
The usual causes are a basket that does not meet the brand's minimum, items already reduced, or a code that ran out. Tell us with the “Code or deal not working?” link and we take it down.

The detail

Type: Discount code
Discount: 23%
Code: WIN23
Applies at: Finediam
How it is applied: Paste the code in the discount box at checkout
Ends: 1 November 2026
Applies to: Sitewide, as the brand describes it
Exclusions: The brand lists exclusions, see its terms below
Brand's terms: Use code WIN23 to receive 23% OFF sitewide at checkout. Valid on selected products available on FineDiam.com. The discount applies to the product price only and cannot be exchanged for cash. Cannot be combined with any other discount, promotion, or coupon code. Offer is subject to availability while stocks last. FineDiam reserves the right to amend or withdraw the offer at any time without prior notice. Standard returns and warranty policies apply to all purchases made using this code.
Category: Fashion & Accessories

The brand's terms

Use code WIN23 to receive 23% OFF sitewide at checkout. Valid on selected products available on FineDiam.com. The discount applies to the product price only and cannot be exchanged for cash. Cannot be combined with any other discount, promotion, or coupon code. Offer is subject to availability while stocks last. FineDiam reserves the right to amend or withdraw the offer at any time without prior notice. Standard returns and warranty policies apply to all purchases made using this code.

Quoted from Finediam. If the brand's own site says something different, the brand's site is right.