Valid The Diamond Store discount codes for September 2026
Select from our hand-tested The Diamond Store vouchers and save big today
Save £10 on Any Item with the Diamond Store Discount Code!
£30 off Your next Order at the Diamond Store
£30 off Sitewide at the Diamond Store
Extra over £300 off Orders at the Diamond Store
Save with the Diamond Store Voucher Code: $30 off Sitewide
Save on Your Must-Have Items with the Diamond Store Promo Code!
£30 off Jewellery Orders at the Diamond Store
Save £30 off Items from Aimee Roses Resort-Ready Edit
Save £30 on Select Items with the Diamond Store Coupon
Save £30 with the Diamond Store Code on Your Purchase
Save £10.75 with the Diamond Store Coupon Today!
£30 off Selected Orders
Next Day Delivery on Selected Eligible Products at the Diamond Store
Free 30-Day Returns and 60-Day Exchanges at the Diamond Store
Free Delivery on All Orders at the Diamond Store
Refer a Friend: £30 off £250+ and £30 off next Purchase at the Diamond Store
Diamond Club Access to Launches and Private Sales at the Diamond Store
Jewellery on Sale with Reductions at the Diamond Store
How to save at The Diamond Store
The Diamond Store discount code was a fan-favourite pick
People really went for this The Diamond Store discount code when it was live, especially anyone shopping for diamond earrings. It ended up being one of our most-clicked jewellery deals for a bit. A good one for gifts, sure, but also for those little treat-myself buys if you already had your eye on a pair of studs or something more drop-style.
It didn't hang around for long and it's expired now. Still, we're keeping an eye on it in case it shows up again.
Expired discounts (give them a try — they might still work!)
Enjoy 15% off Diamond Earrings
Weekend Special: 12% off Site-Wide
10% off Engagement Rings
20% off First Purchase
Free Delivery with Any Order over £50
The Diamond Store Diamond Club: free perks from The Diamond Store
If you're hunting for a The Diamond Store discount code, check the Diamond Club first. It's free to join, and in our experience at LatestDeals, retailers often keep the better extras for members instead of putting them front and centre on the homepage.
You collect points when you shop, and there are a few other ways to earn them too, like referrals and newsletter sign-ups. The useful bit is the extra access. Members can get early access to new launches, private sales and offers that aren't open to everyone. There's a birthday reward as well, which is handy if you've already got a ring, necklace or pair of earrings in mind.
- Points on purchases, plus some extra activities
- Early access to launches
- Private sales and member-only offers
- Birthday reward
One smart way to use it: if you're spending over £250, time it with the referral offer. Your friend gets £30 off their first order over £250, and you get £30 off your next purchase. Just keep in mind that only one voucher can be used at a time, and codes usually won't work during bigger promotions such as Black Friday.
Verified offers for similar brands
Discount codes for popular shops
- Discount codes
- All shops
- The Diamond Store codes
Money saving tips at The Diamond Store
Use NEWTDS
If it’s your first time buying from The Diamond Store, start with the permanent new-customer code NEWTDS — sometimes written as NewTDS. It usually gives you £10 off, and in our experience it makes more sense on a full-price item than during a big sale.
One thing to watch: voucher codes usually can’t be stacked with other offers. So if the site is already running a Black Friday or clearance promo, don’t be surprised if the code won’t apply.
Check Sale page
Have a quick look at the sale section before you buy. It’s especially worth doing for things like earrings or necklaces, where you might be happy to switch styles if the price is better.
The Diamond Store tends to run bigger sale periods too, including Black Friday and a January Sale, and it sometimes sends private offers to members. If your purchase isn’t urgent, waiting can pay off.
Try referral
The referral scheme is actually decent if someone close to you is shopping too. Your friend gets £30 off their first order over £250, and you get £30 off a future purchase once it goes through.
Best way to use it? Put it toward the bigger order first, then keep your reward for later rather than rushing to spend it.
Get free delivery
No real reason to pay for standard shipping here. The Diamond Store offers free delivery across the UK and Northern Ireland, and says worldwide delivery is free as well. Orders go via DPD and need to be signed for.
If you need something quickly, selected items are available for next-day delivery when you order before 3pm, Monday to Thursday. Just double-check the product page first — resized or handcrafted pieces can take longer.
Use free returns
This won’t lower the price, but it can save you from an expensive wrong choice. You get 30 days for a refund and 60 days for an exchange, with free returns in the UK and Northern Ireland. The policy also says returns are free worldwide.
Items need to go back in original condition with the packaging, certificates and tags, and there may be a small polishing fee if needed. Still, if you’re stuck between two styles or sizes, it gives you a bit more breathing room.
Frequently asked questions about The Diamond Store
How do I use/apply a The Diamond Store discount code?
Here’s the usual way to do it:
- Choose the code you want to use, such as NEWTDS for £10 off.
- Add your jewellery to the basket and go to checkout.
- Find the voucher or discount code box.
- Enter the code carefully and click apply.
- Check the total updates before you pay.
The bit that catches people out is this: The Diamond Store says voucher codes do not work when another promotion is already running, including Black Friday offers.
What can I do if my The Diamond Store code isn’t working?
Start with the basics:
- Make sure you’re only using one code. The Diamond Store allows one voucher per order.
- Check whether a sitewide promotion is already live. They say voucher codes cannot be used alongside other offers.
- Enter the code exactly as listed. The new customer code is usually shown as NEWTDS or NewTDS.
- If your order includes next-day delivery, remember that only selected products qualify, and the order has to be placed before 3pm Monday to Thursday.
If the code still won’t go through, remove it, refresh the checkout page, and type it in again. It sounds obvious, but it often sorts it.
Can I use more than one The Diamond Store voucher on the same order?
No. The Diamond Store only allows one voucher per order, so codes can’t be stacked on the same basket.
Is there a The Diamond Store discount code for first orders / new customers?
Yes. The Diamond Store lists NEWTDS, sometimes written as NewTDS, as a standing new customer code for £10 off any item. Just keep in mind that it won’t work if another promotion is running at the same time.
Does The Diamond Store offer free delivery, and is next-day delivery available?
Yes. Delivery is free on all UK and Northern Ireland orders, and those are sent by DPD with a signature required. The Diamond Store also says it offers free worldwide delivery.
Next-day delivery is available on selected products, but only if you order before 3pm from Monday to Thursday. Some items may still take longer if they need resizing or handcrafting first.
What is The Diamond Store’s returns policy (and are returns free)?
The return window is 30 days for a refund and 60 days for an exchange.
Returns are free for UK and Northern Ireland orders. The company also says returns are free from anywhere in the world. Items need to be sent back in their original condition with packaging, certificates, and tags included. They also note that a small polishing fee may be charged if needed. Once the refund is processed, it usually shows within 3 to 5 working days.
The Diamond Store reviews
About The Diamond Store
The Diamond Store, sometimes called The Diamond Store London or just TDS, is a UK online jeweller selling diamond and gemstone jewellery. Its range covers engagement rings, wedding and eternity rings, plus earrings, necklaces, pendants and bracelets. You can shop both mined and lab-grown diamond pieces, along with coloured gemstone styles, and there are finance options if you want to spread the cost.
A lot of shoppers go with The Diamond Store because the practical side is fairly straightforward. UK and Northern Ireland delivery is free, sent by DPD with a signature required, and the retailer also says it offers free worldwide delivery, with any duties and taxes shown at checkout where needed. Returns are free too, with 30 days for a refund and 60 days for an exchange, as long as items come back in their original condition with the packaging, certificates and tags. One small catch: if a returned piece needs polishing, there may be a fee. Some UK items can arrive the next day if you order before 3pm from Monday to Thursday, though handcrafted or resized jewellery usually takes longer.
If you're looking for a The Diamond Store discount code or voucher, we round up the latest offers here at LatestDeals.
I’m Emma (EmmaBeckz), Community Manager at LatestDeals, and I’ve been hunting down deals since 2019 — and, if I’m honest, for a couple of years before that too. A lot of that comes down to properly checking codes and chucking out the ones that don’t actually work.
My best tip for shopping at The Diamond Store is to join The Diamond Club before you buy. It’s free, and you can earn points there, plus you might get member-only offers like private sales or early access. On expensive buys like rings, that can make a real difference.
I’m rarely far from a bargain, or a Disney playlist. If I’m not checking voucher T&Cs, I’m usually planning a cheap family day out.