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NEXT DAY DELIVERY
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 1.50ct H/SI in 9K White Gold
£879£1,469
From £29/mo
9K White Gold (selected)
Diamond Diamond Diamond Diamond 1.50ct H/SI (Lab Grown) (selected) +2
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.25ct H/SI in 925 Silver
£219£309
Silver (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 0.50ct H/SI in 9K White Gold
£529£865
From £18/mo
9K White Gold (selected)
Diamond Diamond 0.50ct H/SI (Lab Grown) (selected) Diamond Diamond +2
NEXT DAY DELIVERY
Diamond Galileo Heart 1.10CT Pendant Necklace in 18K Gold - R4653
£2,429£3,969
From £81/mo
18K Yellow Gold (selected)
Diamond Diamond 1.10ct H/SI (Natural) (selected)
NEXT DAY DELIVERY
Heart Lab Diamond Necklace 0.50ct in 925 Silver
£299£399
Silver (selected)
Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 1.00ct H/SI in 9K White Gold
£699£1,165
From £23/mo
9K White Gold (selected)
Diamond Diamond Diamond 1.00ct H/SI (Lab Grown) (selected) Diamond +2
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 2.00ct H/SI in 9K White Gold
£1,079£1,799
From £36/mo
9K White Gold (selected)
Diamond Diamond Diamond Diamond 2.00ct H/SI (Lab Grown) (selected) +2
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 1.50ct H/SI in 9K Gold
£879£1,469
From £29/mo
9K Yellow Gold (selected)
Diamond Diamond Diamond Diamond 1.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.25ct H/SI in 18k Gold Vermeil
£229£325
18K Gold Vermeil (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected)
Sale
Out of stock
1.00ct Lab Diamond Heart Pendant Necklace H/SI Quality in 9K White Gold
£579£999
From £19/mo
Diamond Diamond 1.00ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.50ct H/SI in 9K Gold
£679£1,119
From £23/mo
9K Yellow Gold (selected)
Diamond Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
Sale
Out of stock
0.50ct Lab Diamond Heart Pendant Necklace H/SI Quality in 9K Yellow Gold
£475£489
From £16/mo
Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.50ct H/SI in 9K White Gold
£679£1,119
From £23/mo
9K White Gold (selected)
Diamond Diamond Diamond 0.50ct H/SI (Lab Grown) (selected)
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.25ct H/SI in 9K Gold
£529£865
From £18/mo
9K Yellow Gold (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected) Diamond
NEXT DAY DELIVERY
Wanderlust 3.00ct Floating Heart Cut Lab Diamond Necklaces in 9K White Gold
£1,549£2,579
From £52/mo
9K White Gold (selected)
Diamond Diamond Diamond Diamond 3.00ct F/VS (Lab Grown) (selected) +2
NEXT DAY DELIVERY
Horizon Heart Cut Lab Diamond Solitaire Necklace 0.25ct H/SI in 9K White Gold
£529£865
From £18/mo
9K White Gold (selected) +1
Diamond Diamond 0.25ct H/SI (Lab Grown) (selected) Diamond
Wanderlust Floating Heart Cut Lab Diamond Solitaire Necklace 1.50ct H/SI in 9K White Gold

Diamond Heart Pendants and Necklaces

Our diamond heart pendants and necklaces celebrate love, affection, and personal connection. Designed with meaning and crafted to last, diamond heart pendants and necklaces make thoughtful gifts, mark meaningful moments, or serve as a subtle everyday reminder of those you hold close.

Each diamond heart pendant or necklace is set with your choice of ethically sourced natural or sustainably created lab-grown diamonds, selected for their clarity, quality, and brilliance. Crafted from recycled precious metals including white and yellow gold, silver, and gold vermeil, every design reflects careful craftsmanship and responsible sourcing.

The collection of diamond heart pendants and necklaces includes classic heart silhouettes, refined cluster designs, and lockets. Diamonds are featured in round and baguette cuts, arranged to add visual interest while keeping the heart motif at the centre of each piece.

Explore the collection and discover diamond heart pendants and necklaces designed to combine lasting quality with thoughtful, symbolic design.

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FAQs

Yes, many of our necklaces feature adjustable chains, allowing you to wear them at different lengths for layering or comfort. Product descriptions list the available adjustments so you can choose the style that works best for you.

Our necklaces are crafted from high-quality, recycled precious metals including sterling silver, 18K gold vermeil, solid 18K gold, and platinum. Each product description details the metal used, so you know exactly what you’re buying.

Our chains are designed to be durable and long-lasting, made with high-quality precious metals. But like all delicate fine jewellery, they should be treated with care - avoid pulling or snagging on clothing to keep your necklace secure for years to come.

Yes, our necklaces are fitted with strong and reliable clasps, designed to hold your jewellery safely in place during daily wear. Many of our designs use spring-ring or lobster clasps, known for their durability and ease of use. When putting your piece on, always double check the clasp is securely closed, to avoid losing it.

We offer necklaces in a variety of lengths, from short, delicate chains to long pendants. Standard lengths are usually 16–18 inches, but exact measurements are listed on each product page. Adjustable chains allow for even more flexibility in length. Please reach out to our customer services (https://www.thediamondstore.co.uk/pages/contact-us) with any questions you may have about the length of the necklace you’re interested in.

Yes, we offer a selection of replacement necklace chains in sterling silver, gold, and platinum. If you need to replace or upgrade your chain, you can choose from a variety of styles and lengths to match your pendant. If you’d like to purchase a replacement chain for a pendant necklace, please get in touch with our customer services who can advise you further (https://www.thediamondstore.co.uk/pages/contact-us).