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

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Vintage Heart Locket Lab Diamond Necklace White Topaz in 925 Silver
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Vintage Heart Locket Lab Diamond Necklace White Topaz in 925 Silver

Item Ref: UP3253

AVAILABILITY: In stock (27 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

The perfect gift for somebody you love, this exquisite locket opens up so you can store a lock of hair or a miniature photograph inside. It is handcrafted with sterling silver featuring a sparkling, sustainable lab grown diamond in the...

£119

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Heart Lab Diamond Necklace 0.50ct in 18K Gold Vermeil
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Heart Lab Diamond Necklace 0.50ct in 18K Gold Vermeil

Item Ref: ANDD3568U

AVAILABILITY: In stock (84 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

Discover our 0.50ct Lab-Grown Diamond Heart Pendant Necklace, featuring 0.50ct of diamonds set in the finest recycled gold vermeil. A delicate pavé heart pendant hangs from a subtle gold chain on the neckline. The clasp securing the heart to the...

£279

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Heart Necklace Pendant Lab Diamond 0.50ct in 9K White Gold
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Heart Necklace Pendant Lab Diamond 0.50ct in 9K White Gold

Item Ref: NDG3578Y

AVAILABILITY: In stock (-1 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

If your loved one adores shimmering, beautiful jewellery then they'll love this handcrafted heart locket. It features environmentally sustainable lab grown diamonds which are pave set within white gold. Perfect for storing a lock of hair or a miniature photograph....

£579

From £20.61 per month

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Diamond 0.47ct Heart Pendant Necklace 9K White Gold
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Diamond 0.47ct Heart Pendant Necklace 9K White Gold

Item Ref: G3578

AVAILABILITY: In stock (1 item)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

If your gift recipient loves classic, beautiful diamond jewellery, then they'll adore this handcrafted heart locket. It features tiny, shimmering round cut diamonds which are set within white gold. A gorgeous gift idea for any special occasion.

£779

From £27.73 per month

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Heart Lab Diamond Necklace 0.50ct in 925 Silver
NEXT DAY DELIVERY
New

Heart Lab Diamond Necklace 0.50ct in 925 Silver

Item Ref: NDD3568U

AVAILABILITY: In stock (93 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

Discover our 0.50ct Lab-Grown Diamond Heart Pendant Necklace, featuring 0.50ct of diamonds set in the finest recycled 925 silver. A delicate pavé heart pendant hangs from a subtle silver chain on the neckline. The clasp securing the heart to the...

£279

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Heart Necklace Pendant Lab Diamond 0.50ct in 925 Silver
NEXT DAY DELIVERY
New

Heart Necklace Pendant Lab Diamond 0.50ct in 925 Silver

Item Ref: NDG3578U

AVAILABILITY: In stock (16 items)

PRODUCT TYPE: Necklaces

VENDOR: The Diamond Store

If your loved one adores shimmering, beautiful jewellery then they'll love this handcrafted heart locket. It features environmentally sustainable lab grown diamonds which are pave set within fine sterling silver. Perfect for storing a lock of hair or a miniature...

£259

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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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