FREE WORLDWIDE DELIVERY 30 DAY RETURNS / 60 DAY EXCHANGE 5 YEAR GUARANTEE 0% APR FINANCE UK HANDCRAFTED
FREE WORLDWIDE DELIVERY 30 DAY RETURNS / 60 DAY EXCHANGE 5 YEAR GUARANTEE 0% APR FINANCE UK HANDCRAFTED
Bag (0) 0
Bag (0) 0

WHAT ARE YOU LOOKING FOR?

Show Filters (4)
Featured Best selling Alphabetically, A-Z Alphabetically, Z-A Price, low to high Price, high to low Date, old to new Date, new to old

Showing 4 products

Clear All
Vintage Heart Locket Lab Diamond Necklace White Topaz in 18K Gold Vermeil
NEXT DAY DELIVERY
New

Vintage Heart Locket Lab Diamond Necklace White Topaz in 18K Gold Vermeil

Item Ref: AUP3253

AVAILABILITY: In stock (92 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

Discover our Vintage Heart Locket Lab Diamond Necklace, featuring diamonds and white topaz stones, set in the finest 18ct gold vermeil. This locket makes a perfect, meaningful gift for a loved one, as you can include a special photo inside...

£135

Pay in 3 interest-free

Compare
Lab Diamond Huggie Earrings 0.25ct H/Si Pave Set in 9K Gold
NEXT DAY DELIVERY
New

Lab Diamond Huggie Earrings 0.25ct H/Si Pave Set in 9K Gold

Item Ref: NDH5220

AVAILABILITY: In stock (9 items)

PRODUCT TYPE: Earrings

VENDOR: The Diamond Store

These luxurious and sustainable lab grown diamond huggie earrings are handcrafted in luscious yellow gold, with milgrain work on the edges for a hint of vintage elegance. A classic gift for any occasion, they bring the beauty of diamonds to...

£549

From £19.55 per month

Compare
5.40ct Blue Topaz and Lab Diamond Halo Asteria Necklace in 925 Sterling Silver
NEXT DAY DELIVERY
New

5.40ct Blue Topaz and Lab Diamond Halo Asteria Necklace in 925 Sterling Silver

Item Ref: LBDP28-BTS

AVAILABILITY: In stock (34 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

Discover our 2ct Blue Topaz and Lab Diamond Halo Square Necklace Asteria 925 Serling Silver, featuring 0.45ct of premium quality diamonds, set in a halo design around an outstanding 5.40ct blue topaz stone. The halo of diamonds enhances the central...

£365

From £13.0 per month

Compare
Georgina Blue Lab Diamond Oval Halo 1.60ct Ring in Platinum - Elara Collection
NEXT DAY DELIVERY
New

Georgina Blue Lab Diamond Oval Halo 1.60ct Ring in Platinum - Elara Collection

Item Ref: NDUT82-DF322S

AVAILABILITY: In stock (0 items)

PRODUCT TYPE: Rings

VENDOR: The Diamond Store

This exquisite Georgina ring is part of our new Elara Collection that showcases the breathtaking beauty of sustainable coloured lab diamonds. The magnificent blue lab diamond solitaire looks elegant in a platinum setting, catching the eye with its unrivalled brilliance....

£1,889

From £67.25 per month

Compare
Butterfly Mark
Professional Jeweller Awards 2022 Winner
Professional Jeweller Awards 2023 Finalists
The United Kingdom Weddings and Honeymoons Awards 2024 Finalists
Member of the National Association of Jewellers
OUR COMPANY
HELP & SUPPORT
CUSTOMER SERVICE

Copyright © 2025. All Rights Reserved.
| Registered in England and Wales Co No. 05736216
Regalian Ltd t/a The Diamond Store is a credit broker for the purpose of introducing credit provided by the lender Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC, Authorised and Regulated by the Financial Conduct Authority, and PayPal Credit is provided by PayPal. PayPal Credit is a trading name of PayPal UK Ltd, 5 Fleet Place, London, United Kingdom, EC4M 7RD. Regalian Ltd is authorised and regulated by the Financial Conduct Authority with registration number 731102. are Authorised and Regulated by the Financial Conduct Authority. We are a credit broker, not a lender – credit is subject to status and affordability, and is provided by a panel of lenders of whom we have a commercial relationship. Terms & Conditions Apply. Credit is provided subject to age and status. Minimum spend applies. PayPal Pay in 3: PayPal Pay in 3 is not regulated by the Financial Conduct Authority. Pay in 3 eligibility is subject to status and approval. 18+. UK residents only. Pay in 3 is a form of credit, may not be suitable for everyone. Use may affect your credit score or make credit less accessible or more expensive for you. Consider if affordable for you. See product terms for more details.

TOP

WHAT ARE YOU LOOKING FOR?

CLOSE
MY BAG - 0 ITEMS
Your shopping bag is empty.

Our Returns Policy

We want you to feel completely confident when you shop with us. That’s why we offer FREE 30-day returns for refunds and 60-day exchanges across the UK and Northern Ireland.

If you’ve ordered a ring smaller than a size J or larger than a size Q, don’t worry — these are custom sizes, but we’re still happy to offer a free exchange or resizing if the fit isn’t quite right.

Cancelling an Order Before Dispatch

Changed your mind? No problem — you can cancel your order anytime before it’s been dispatched.

Just reach out to our friendly team via Live Chat, by email at customerservice@thediamondstore.com, or give us a call on 0345 084 1200 (or +44 345 084 1200 if calling from outside the UK). Please have your order number handy to help us assist you as quickly as possible.

Product Measurements

Please note that for rings smaller than size J or larger than size Q, the width may vary slightly (up to 10%) due to the crafting process. If you need any adjustments, we’re happy to help.

Damaged or Defective Items

If your item arrives damaged or defective, we’ll make it right — fast. We’ll either repair or replace it at no cost to you, or provide a refund once it’s been assessed by our head jeweller.

Our standard returns policy is 30 days to return, and 60 days to exchange.

Our 5 Year Guarantee.

We stand by the quality of our jewellery. That’s why all our pieces come with a 5-year guarantee against defects in materials or craftsmanship. Every item is also fully hallmarked according to UK legislation, confirming its authenticity and origin.

How Refunds Work

Once we’ve received and inspected your returned jewellery, we’ll process your refund right away and email you to confirm. Depending on your bank or payment provider, it may take 3 to 5 working days to show up on your statement.

We’ll always refund you via the same method you used to make your purchase — whether that was credit or debit card, PayPal, Pay4Later Finance, bank transfer, or another option.

To avoid delays, make sure to include the returns label print-out with your parcel. This helps us identify your return quickly.

Ethically Sourced Diamonds

We’re proud to say that all our diamonds are conflict-free and fully compliant with United Nations regulations. When you buy from us, you’re choosing ethical beauty.

Need Help? Get in Touch

We’re here whenever you need us.

📧 Email us: customerservice@thediamondstore.com or returns@thediamondstore.co.uk

📞 Call us: 0345 084 1200 (UK) or +44 345 084 1200 (International)

Compare

No products were added to the compare

RING SIZES & RINGS SIZERS

WHAT IS RING SIZE?

‘Ring size’ is a measurement that refers to the inside circumference of a ring. It’s important to know your correct ring size before buying a ring, otherwise it won’t fit properly.

Different countries use different standardised systems for denoting ring size.

On the right, there’s a chart with the 3 most common ring size systems used in UK, USA and internationally. For Australian sizes simply refer to the UK sizes, which are the same.

WHY USE A RING SIZER?

Ring size is one of those things we think we’ll always remember… but never actually do!

It is very important to find out the correct ring size whether the ring is for you or another person. This measurement enables us to provide you with a perfectly fitting ring. A ring that is so small you cannot get it on – or so big it falls off – can really ruin a big moment!

OUR RING SIZER APP

Our free Ring Sizer App is accurate and easy to use!

Find out a ring size in UK, EU or USA measurements. All sizes F – Z included, from smallest to largest finger.

Simply place your loved one’s existing ring on your phone screen, then adjust the circle until it fits the inside of the ring exactly.

This app helps you keep an engagement ring or a special gift a surprise and saves you a trip to the jewellers.

apple download
Google download

CROSS CHECKING AN EXISTING RING

If you have a printer and an existing ring (or measurement) then print this PDF and use it in conjunction with our app.
DOWNLOAD RING SIZER GUIDE

Thanks for contacting us. We'll get back to you as soon as possible.

Continue shopping