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
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Lab Diamond Heart Pendant Necklace 0.25ct H/Si in 9K Gold
NEXT DAY DELIVERY
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Lab Diamond Heart Pendant Necklace 0.25ct H/Si in 9K Gold

Item Ref: NDG5230

AVAILABILITY: In stock (60 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

If your sweetheart adores romantic diamond jewellery then they'll fall head over heels for this dainty heart pendant. It showcases sparkling, sustainable lab grown diamonds, set in luscious yellow gold with a milgrain edge for a touch of vintage elegance....

£299

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0.50ct Lab Diamond Wishbone Ring H/Si Quality in 9K Yellow Gold
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0.50ct Lab Diamond Wishbone Ring H/Si Quality in 9K Yellow Gold

Item Ref: NDE6262

AVAILABILITY: In stock (-1 items)

PRODUCT TYPE: Rings

VENDOR: The Diamond Store

Discover our 0.5 carat wishbone ring, set in the finest recycled 9k yellow gold. 0.5 carats of lab-grown diamonds sit nestled in an arched formation, creating a contemporary wishbone style across the finger. Worn alone, a wishbone ring is an...

£399

From £14.21 per month

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1.30ct Emerald and Diamond Eternity Ring 18K Gold - Asteria Collection
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1.30ct Emerald and Diamond Eternity Ring 18K Gold - Asteria Collection

Item Ref: FT80-G.F.0

AVAILABILITY: In stock (0 items)

PRODUCT TYPE: Rings

VENDOR: The Diamond Store

Made with the finest glowing green emeralds and high quality diamonds, and set in luxurious 18K gold, this five-stone ring promises to catch the eye and win her heart. Exquisitely handcrafted, the emeralds are chosen for their exquisite colour and...

£999

From £35.57 per month

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0.70ct Lab Diamond Halo Necklace in 9K Yellow Gold G/Vs
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0.70ct Lab Diamond Halo Necklace in 9K Yellow Gold G/Vs

Item Ref: NDD3547-72XUA

AVAILABILITY: In stock (5 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

Discover our 0.70ct Lab Diamond Halo Necklace, set in the finest 9k recycled yellow gold. The classic solitaire pendant necklace is elevated with a halo of diamonds surrounding the 0.50ct centre stone, protecting the main diamond, enhancing its magnitude, and...

£459

From £16.34 per month

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0.25ct Lab Diamond Hoop Earrings H/Si Quality in 9K Gold - 21mm
NEXT DAY DELIVERY
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0.25ct Lab Diamond Hoop Earrings H/Si Quality in 9K Gold - 21mm

Item Ref: NDH5268

AVAILABILITY: In stock (7 items)

PRODUCT TYPE: Earrings

VENDOR: The Diamond Store

This breathtaking pair of diamond hoop earrings is the ultimate luxury gift. Their special design places ethical lab grown diamonds both on the outer front and inside back of the hoops, to create spectacular radiance. The perfect gift to make...

£549

From £19.55 per month

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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
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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.

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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)

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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

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