Voucher Magpie
RonFreeresize
One free ring resize, no time limit
One free resize within three sizes of the original order size.
Diamond Rocks Discount Codes for October 2026
FreeBest offer today
0Codes to copy
3Deals, no code needed
Top Diamond Rocks promo codes for 4 October 2026
0%finance
0% APR finance over 6 months with Klarna
Klarna finance on purchases up to £5,000; 6 months at 0% APR, longer terms at 21.9% APR. 18+, subject to status.
Freedelivery
Free delivery
Free insured next-day UK delivery
Royal Mail Special Delivery, next working day, signature required; UK mainland.
Today's active Diamond Rocks voucher codes
Updated 4 October 2026| Offer | Saving | Ends |
|---|---|---|
| One free ring resize, no time limit Deal | Free | Ongoing |
| 0% APR finance over 6 months with Klarna Deal | 0% | Ongoing |
| Free insured next-day UK delivery Deal | Free | Ongoing |
About Diamond Rocks
Diamond Rocks is a London jeweller based at 100 Hatton Garden, the city's long-standing jewellery quarter. It works from private offices rather than a high-street shop, and visits are by appointment.
The range covers engagement rings, wedding and eternity rings, earrings, pendants, necklaces and bracelets, in both natural and lab-grown diamonds, plus sapphire, emerald, ruby and other gemstone pieces. A design-your-own-ring tool and a free bespoke design service let you choose the stone, setting and metal. Diamond pieces come with IGI certificates and UK hallmarks.
The business trades as SK Partnership and is a member of the National Association of Jewellers. UK orders travel free by insured Royal Mail Special Delivery, and Klarna finance is available on purchases up to £5,000. Returns are accepted within 30 days on unworn items, although earrings and bespoke pieces are excluded, and goods carry a 25-year warranty against manufacturing defects. You can also book a phone call or message the team on WhatsApp.
Diamond Rocks at a glance
| Delivery | Free, fully insured Royal Mail Special Delivery next working day on UK mainland orders; signature required. |
|---|---|
| Returns | 30-day money back or exchange on unworn items with paperwork; earrings and bespoke pieces excluded. |
| Click & collect | Collection from the Hatton Garden office by appointment. |
| Ways to pay | Card or Klarna finance up to £5,000 (6 months at 0% APR, or 12-36 months at 21.9% APR). |
From Diamond Rocks's own website. Terms change, so check at checkout.
How to use Diamond Rocks voucher codes
- Tap Get code on the offer you want. We copy the code for you and open Diamond Rocks in a new tab.
- Check the offer's Terms first: some codes need a minimum spend, are for new customers only, or exclude sale items.
- Add what you want to your basket on diamondrocks.co.uk.
- At checkout, choose delivery or click & collect. Collection from the Hatton Garden office by appointment.
- Paste the code into the discount code or promo code box and apply it. Check the discount shows in your order total before you pay.
- Didn't work? Tap Didn't work? under the code so we can recheck it, and read why codes fail.
Ways to save at Diamond Rocks
- Spread the cost over 6 months at 0% APR with Klarna (purchases up to £5,000).
- UK delivery is free and insured, so there is nothing extra to pay for postage.
- Get one free ring resize (up to three sizes) with no time limit.
- Compare natural and lab-grown versions of the same style before you choose.
Diamond Rocks customer service & reviews
Contact Diamond Rocks
Phone: 0800 977 4855 (Monday to Thursday 10am-6pm, Friday 10am-5pm; weekends by email or WhatsApp)
What shoppers say
Diamond Rocks FAQs
What's the best Diamond Rocks code today?
One free ring resize, no time limit.
Does Diamond Rocks do student discount?
We don't know of a student discount at Diamond Rocks at the moment.
Does Diamond Rocks offer a Blue Light or Armed Forces discount?
We don't know of a Blue Light or Armed Forces discount at Diamond Rocks at the moment.
Does Diamond Rocks offer free delivery?
Free, fully insured Royal Mail Special Delivery next working day on UK mainland orders; signature required.
What is Diamond Rocks's returns policy?
30-day money back or exchange on unworn items with paperwork; earrings and bespoke pieces excluded.
How do I contact Diamond Rocks customer service?
Call 0800 977 4855 (Monday to Thursday 10am-6pm, Friday 10am-5pm; weekends by email or WhatsApp). Or use the help centre on the Diamond Rocks website.
Can I use more than one Diamond Rocks discount code?
Usually not: most stores, including Diamond Rocks, accept one discount code per order. Automatic deals and sale prices can often be combined with a code, so check the terms on each offer.
Why didn't my Diamond Rocks code work?
Most codes exclude gift cards and items already reduced, and some need a minimum spend or are for new customers only. Open Terms on the code, or tap "Didn't work?" and we'll recheck it.
How do I use a Diamond Rocks discount code?
Tap Get code and we copy it for you. Add your items to the basket on the Diamond Rocks website, then paste the code into the discount or promo code box at checkout.
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