Purely Diamonds Discount Codes & Promo Codes February 2026

Save Up to 50% in Seasonal Sales

Smart diamond shoppers know that Purely Diamonds offers some of the UK's most competitive prices on certified diamond jewellery - but there are clever ways to save even more. From interest-free payment plans to seasonal sales reaching up to 50% off, here's how to get the best value on everything from engagement rings to diamond earrings. We'll walk you through the finance options and insider tips that can seriously slash your spend.

How to Apply Your Purely Diamonds Discount

Getting your Purely Diamonds discount to work properly is straightforward once you know the steps. The key is entering your voucher at the right moment during checkout to ensure maximum savings.

1. Add your chosen items to your basket and proceed to checkout
2. Look for the "discount" section during the payment process - it's typically displayed before you enter payment details
3. Enter your offer exactly as provided - they're case-sensitive, so double-check spelling and spacing
4. Click "Apply" or "Add" to activate the discount - you should see the price reduction immediately
5. Complete your purchase with the discounted total showing

If your offer isn't working, check it hasn't expired and that your items are eligible. Remember that finance options cannot be combined with promotional offers, so choose the option that gives you better overall value.

Get 0% Interest-Free Credit on Purchases Over £275

Purely Diamonds' finance options make luxury diamonds accessible through manageable monthly payments. Their Interest-Free Credit plans let you spread costs without paying extra - perfect for engagement rings or special occasion pieces.

• 3, 6, or 9 months interest-free on any purchase over £275
• 12 months interest-free on purchases over £900
• Minimum 10% deposit required - you can pay up to 60% upfront to reduce monthly payments
• Longer terms available - 24, 36, or 48 months at 12.9% APR for larger purchases

The finance is provided by Mitsubishi HC Capital and cannot be combined with promotional offers. For many shoppers, the interest-free terms offer better value than discount offers, especially on higher-priced items.

Free Next-Day UK Delivery Worth £20

Every Purely Diamonds order includes complimentary next-day delivery within the UK, with no minimum spend required. This premium service typically costs £15-20 elsewhere, making it a genuine saving on every purchase.

• Royal Mail Special Delivery between 9am and 4pm, Monday to Friday
• Fully insured during transit and requires a signature upon delivery
• International shipping available - £20 to Europe or £40 worldwide via FedEx/TNT Express
• Full tracking and insurance included for peace of mind

Save Up to 50% in Seasonal Sales

Purely Diamonds runs substantial seasonal sales throughout the year, with the biggest discounts typically appearing between April and September. Their current January Sale offers 20% off everything, but savvy shoppers know when to expect even deeper cuts.

Winter and Christmas Sales - Up to 50% Off

The winter period brings some of the year's best deals, particularly on lab-grown diamond rings where discounts reach 50% off. In-stock diamond jewellery typically sees 30% reductions during these sales.

Spring and Summer Promotions - Up to 30% Off

Mother's Day sales start in March, while summer promotions can reach 30% off selected ranges. The dedicated Special Offers section on their website showcases current deals, with discounts often hitting 40% off.

Black Friday and Autumn Sales - Up to 25% Off

Autumn brings reliable 25% discounts across multiple categories, while Black Friday typically focuses on engagement rings and wedding bands with targeted reductions.

Try Before You Buy for Just £15

This unique service lets you try engagement ring styles at home before committing to the real thing. For just £15 (plus a refundable £100 deposit), you'll receive silver replicas with cubic zirconia stones that show the exact look, scale, and style of your chosen design.

You can request up to 2-3 samples at a time, and they must be returned within 48 hours using the provided pre-paid tracked envelope. The £100 deposit is fully refunded once samples are safely returned, making this an incredibly cost-effective way to avoid expensive sizing or style mistakes.

Price Match on Certified Diamonds

Found the same GIA or IGI certified diamond elsewhere for less? Purely Diamonds will attempt to match the price, though this applies only to the diamond itself, not the complete piece of jewellery.

To use the service, contact them with details of where you found the lower price, including the exact amount and a link to the competitor's listing. Price match quotes are valid for 48 hours and cannot be combined with other discounts. The service excludes competitor promotions or sales prices, and Purely Diamonds reserves the right to decline matches on diamonds being sold significantly under market value.

Unlock Exclusive Offers with Newsletter Signup

Signing up for Purely Diamonds' email newsletter unlocks exclusive offers that aren't available to the general public. Newsletter subscribers receive single-use promotion offers that often provide better discounts than publicly available deals.

First-time subscribers typically receive a 5% welcome discount, while returning customers occasionally get targeted offers based on their purchase history. You'll also get early access to seasonal sales and advance notice of special promotions before they go live to the wider public.

Lab-Grown Diamonds - Save 30-40% Without Compromise

Lab-grown diamonds offer identical brilliance to natural stones at a fraction of the cost. These aren't synthetic or fake diamonds - they're chemically identical to mined diamonds but created in controlled laboratory conditions.

The savings are substantial, with lab-grown options typically costing 30-40% less than comparable natural diamonds. This means you can either save money on the same size stone or get a significantly larger diamond for the same budget. All lab-grown diamonds come with the same GIA or IGI certification as natural stones.

Flexible Gift Cards for Any Amount

Purely Diamonds gift cards are available for any amount and can be redeemed online, by telephone, or in their London showroom. Purchase through their gift card request page, where a team member will contact you for verification and payment.

Gift cards are delivered via Royal Mail Special Delivery or can be collected from their showrooms. Online redemption is simple - just enter the number from the back of the voucher during checkout. For telephone orders, call with your voucher number, or bring the physical card to their London location.

Customer Support at Purely Diamonds

Get help with orders, sizing questions, or diamond selection through multiple contact channels. Their London-based team provides personalised service whether you're browsing online or need post-purchase support.

• Phone: 0207 837 2964 (also available via WhatsApp)
• Email: sales@purelydiamonds.co.uk for detailed enquiries
• Showrooms: London and Manchester locations for in-person consultations
• Virtual appointments: Personalised online consultations from home

Their website includes detailed product information, sizing guides, and a comprehensive FAQ section for self-service support. All purchases come with a 30-day returns policy and detailed care instructions.