Diamond Necklaces — Hatton Garden, London

From delicate diamond pendants to bold tennis necklaces, every piece in this collection is handcrafted in Hatton Garden — the heart of the UK's finest jewellery quarter. Each design is made with ethically sourced diamonds and hallmarked precious metals, crafted to be treasured for a lifetime.

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  • Featured
  • Most relevant
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  • Alphabetically, A-Z
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  • Pear Shape Lab Grown Diamond Solitaire Pendant Anniversary GiftPear Shape Lab Grown Diamond Solitaire Pendant Valentine's Gift
    Finediam

    Pear Shape Lab Grown Diamond Solitaire Pendant | Pendant Without Chain

    ✨Product Description:- Add timeless elegance to your jewellery collection with this Pear Shape Lab Grown Diamond Solitaire Pendant, expertly handcrafted in the UK. Featuring a certified pear cut lab grown diamond (D–E Colour, VS Clarity), this pendant offers exceptional brilliance and fire while providing an...
    From £102.82
    £540.00
    From £102.82
  • Round Diamond Solitaire Pendant Anniversary Gift UK Made NecklaceRound Diamond Solitaire Pendant Birthday Gift Gold Necklace Her
    Finediam

    Round Diamond Solitaire Pendant | Elegant Necklace Without Chain

    Product Description:- Add timeless elegance to your jewellery collection with this Lab Grown Round Brilliant Diamond Solitaire Pendant, expertly handcrafted in Hatton Garden, London. Designed to showcase exceptional brilliance, this classic pendant features a certified lab grown round brilliant cut diamond with D–E Colour...
    From £102.82
    £540.00
    From £102.82
  • 10.50 Carat Lab Grown Round Diamond Graduated Tennis Necklace Anniversary Gift10.50 Carat Lab Grown Round Diamond Graduated Tennis Necklace Wedding Gift
    Finediam

    10.50 Carat Lab Grown Round Diamond Graduated Tennis Necklace

    10.50ct Lab-Grown Diamond Graduated Tennis Necklace in 9K White Gold A true showpiece, crafted in the heart of Hatton Garden, London — the UK’s most prestigious jewellery quarter. This graduated diamond tennis necklace features 10.50 carats of round brilliant lab-grown diamonds, each hand-selected for...
    £2,470.18
    £2,470.18
  • White gold emerald cut diamond pendant anniversary giftWhite gold diamond pendant on model Valentine gift
    Finediam

    Lab Grown Emerald Cut Diamond Pendant | Claw Set Diamond Pendant Without Chain

    Make a lasting impression with this Lab Grown Emerald Cut Diamond Pendant Necklace, expertly handcrafted in the UK. Featuring a certified lab-grown emerald cut diamond (D–E Colour / VS Clarity), this pendant offers exquisite clarity and elegance, capturing the true brilliance of an emerald...
    From £102.82
    £540.00
    From £102.82
  • Pear diamond solitaire necklace in white gold for elegant wear.Elegant pear-cut diamond pendant, a perfect gold jewelry gift.
    Finediam

    Lab Grown Pear Diamond Solitaire Necklace | Solitaire Necklace With Chain

    Shine with graceful brilliance in this Lab Grown Pear Diamond Solitaire Necklace, a piece that captures timeless romance with a modern edge. Handcrafted in Hatton Garden, London, it features a certified lab-grown diamond (D–E Colour / VS Clarity)—ethically created for maximum sparkle and purity....
    From £301.54
    £540.00
    From £301.54
  • Lab Grown Round Diamond Drop Pendant in 18K White Gold – 4 Claw Set UK HallmarkedUK Made Round Diamond Drop Pendant for Women – Certified D-E/VS Lab Grown Diamond
    Finediam

    Lab Grown 3 Stone Diamond Drop Pendant | 4 Claw Set Pendant | Without Chain 9k White Gold

    ✨Product Description:- Exude elegance with this stunning Lab Grown 3 Stone Diamond Drop Pendant, designed to showcase timeless beauty, brilliance, and sophisticated style. Featuring three perfectly matched round lab-grown diamonds set vertically in a classic 4-claw setting, this pendant creates a graceful drop effect...
    From £223.78
    £540.00
    From £223.78
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Diamond pendant on a white backgroundLab Grown Oval Diamond Pendant | Solitaire Pendant Without Chain
    Finediam

    Lab Grown Oval Diamond Pendant | Solitaire Pendant Without Chain

    Experience refined brilliance with this Lab Grown Oval Diamond Pendant, handcrafted with perfection in Hatton Garden, London. Each pendant features a certified lab-grown diamond (D–E Colour / VS Clarity), exuding unmatched sparkle and elegance — perfect for both daily wear and special occasions. The...
    From £163.30
    £540.00
    From £163.30
  • Round Claw Set Lab Grown Diamond Pendant in 18K White Gold – UK HallmarkedCertified Lab Grown Round Diamond Solitaire Pendant – 9K Yellow Gold UK Made
    Finediam

    Lab Grown Round Diamond Solitaire Pendant | Claw Set Pendant Without Chain

    Product Description:- Add timeless elegance to your jewellery collection with this Lab-Grown Round Diamond Solitaire Pendant, expertly handcrafted in Hatton Garden, London. Featuring a sparkling Round Brilliant Cut lab-grown diamond in D–E Colour and VS Clarity, this classic pendant offers exceptional brilliance and an...
    From £102.82
    £540.00
    From £102.82
  • Lab Sapphire and Round Diamond Solitaire PendantLab Sapphire and Round Diamond Solitaire Pendant in White Gold
    Finediam

    Sapphire and Diamond Halo Pendant | Cushion Cut Sapphire Pendant in Silver Without Chain

    ✨Product Description: Discover this stunning Sapphire and Diamond Halo Pendant, featuring a beautiful cushion-cut sapphire surrounded by a halo of sparkling diamonds. Crafted in your choice of Silver, this elegant design enhances the rich blue sapphire with brilliant diamond accents for a timeless and...
    £197.86
    £197.86
  • Lab Diamond Heart Necklace Pendant 0.10ct H/SI in 18K Gold Vermeil | FineDiamLab Diamond Heart Necklace Pendant 0.10ct H/SI in 18K Gold Vermeil | FineDiam
    Finediam

    Lab Diamond Heart Necklace Pendant 0.10ct H/SI in 18K Gold Vermeil | FineDiam

    ✨Product Description:- Wear your heart on your sleeve—and around your neck—with our breathtaking Lab Diamond Heart Necklace. This romantic pendant features a beautifully shaped 0.10ct heart cut laboratory-grown diamond of exceptional H/SI quality, designed to radiate maximum fire and brilliance. Exquisitely set in luxurious...
    £517.54
    £517.54
  • Lab Grown Round Diamond Tear-Drop Halo Pendant in 18K White Gold – UK HallmarkedHandcrafted Round Diamond Tear-Drop Necklace – Ethical Lab Grown Jewellery UK
    Finediam

    Lab Grown Diamond Drop Pendant Necklace 4 Claw Set Without Chain 9k White Gold

    ✨Product Description:- Exude timeless elegance with this stunning Lab Grown Diamond Halo Drop Pendant, expertly crafted to deliver exceptional brilliance and sophisticated style. Featuring a round brilliant lab-grown diamond at the centre, surrounded by a shimmering halo of smaller diamonds, this pendant forms a...
    From £154.66
    £540.00
    From £154.66
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Diamond pendant necklace on a white backgroundwhite gold necklace with a pendant worn by a person in a blurred indoor setting
    Finediam

    Lab Grown Three Stone Diamond Pendant Without Chain UK Hallmarked 9k White Gold

    ✨Product Description:- Exude elegance with this striking Lab Grown Three Stone Diamond Drop Pendant, expertly crafted in a refined crown claw setting for a bold yet timeless look. Featuring three round brilliant lab-grown diamonds arranged in a graceful vertical drop, this pendant creates a...
    From £223.78
    £540.00
    From £223.78
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Pear Shape Lab Grown Diamond Pendant in 18K White Gold – UK HallmarkedPlatinum Pear Shape Lab Grown Diamond Pendant – 5 Prong Set UK Hallmarked
    Finediam

    Lab Grown Oval Diamond Solitaire Pendant| Solitaire Pendant Without Chain

    Introducing the Lab Grown Oval Diamond Solitaire Pendant — a timeless piece of elegance and sustainability. Handcrafted in Hatton Garden, London, this pendant features a certified lab-grown pear-shaped diamond (D–E Colour / VS Clarity), offering the same exquisite sparkle as mined diamonds but with an...
    From £102.82
    £540.00
    From £102.82
  • Diamond necklace with emerald-cut pendant on a white backgroundLab Grown Emerald Cut Diamond Necklace | Solitaire Pendant With Chain
    Finediam

    Lab Grown Emerald Cut Diamond Necklace | Solitaire Pendant With Chain

    Add refined sophistication to any look with this Lab Grown Emerald Cut Diamond Necklace, beautifully handcrafted in the UK. Each pendant features a certified lab-grown diamond (D–E Colour / VS Clarity), offering the same fire and brilliance as mined diamonds — with an ethical...
    From £431.14
    £540.00
    From £431.14
  • Certified Lab Grown Round Diamond Solitaire Pendant – 9K Yellow Gold UK MadeHandcrafted Diamond Pendant – Available in Gold & Platinum UK Jewellery
    Finediam

    Floating Round Diamond Pendant Without Chain in White Gold

    Elevate your jewellery collection with this elegant Floating Round Diamond Pendant Necklace, crafted in luxurious White Gold for a timeless and sophisticated finish. Designed with a delicate floating solitaire style, the brilliant round diamond is secured in a refined 4-prong setting, allowing maximum light...
    From £232.42
    £540.00
    From £232.42
  • Lab Grown Round Diamond Solitaire Pendant White GoldLab-Grown Round Diamond Solitaire Pendant in 9ct White Gold
    Finediam

    Round Diamond Solitaire Pendant Necklace in 18K Gold

    Discover timeless elegance with this beautifully crafted Round Diamond Solitaire Pendant Necklace in luxurious 18K Gold. Featuring a brilliant round-cut diamond in a classic solitaire setting, this pendant offers exceptional sparkle with a clean and sophisticated look. Designed for everyday elegance and special occasions,...
    From £215.14
    £756.00
    From £215.14
  • Initial Diamond Pendant Necklace with Baguette and Round DiamondsGold necklace with a unique pendant on a white background
    FineDiam

    Initial Diamond Pendant Necklace with Baguette and Round Diamonds 9k White Gold

    ✨Product Description:- Discover this stunning Initial Diamond Pendant Necklace, featuring the letter ‘A-Z’ beautifully crafted in rose gold and encrusted with sparkling diamonds. Designed with a stylish mix of baguette and round diamonds, this pendant offers a bold yet elegant personalised look. The script-style initial...
    From £1,052.35
    From £1,052.35
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Lab Diamond Cross Necklace Pendant 0.22ct in 925 Sterling SilverLab Diamond Cross Necklace Pendant 0.22ct in 925 Sterling Silver
    Finediam

    Lab Diamond Cross Necklace Pendant 0.22ct in 925 Sterling Silver

    ✨Product Description:- Celebrate enduring beauty with our Lab Diamond Cross Pendant, a refined piece that marries spiritual significance with high-end jewellery design. This elegant cross is set with 0.22ct of premium, lab-grown diamonds that have been carefully selected for their consistent fire and brilliance....
    £171.07
    £171.07
  • Lab Diamond Cross Necklace Pendant 0.22ct in 18K Gold VermeilLab Diamond Cross Necklace Pendant 0.22ct in 18K Gold Vermeil
    Finediam

    Lab Diamond Cross Necklace Pendant 0.22ct in 18K Gold Vermeil

    ✨Product Description:- Embrace a blend of timeless symbolism and contemporary luxury with our Lab Diamond Cross Pendant. Meticulously crafted to serve as a meaningful keepsake, this unisex piece features 0.22ct of premium round-cut lab-grown diamonds, each claw-set to maximize its natural brilliance and light...
    £171.07
    £171.07
  • Aquamarine 0.34CT And Diamond 9K White Gold Pendant NecklaceAquamarine 0.34CT And Diamond 9K White Gold Pendant Necklace
    Finediam

    Aquamarine 0.34CT And Diamond 9K White Gold Pendant Necklace

    ✨Product Description:- Discover our Aquamarine 0.34CT And Diamond 9K White Gold Pendant Necklace, featuring 0.34ct of a beautiful aquamarine gemstone, set against 0.02ct of premium quality accent diamonds. The beautiful pale blue aquamarine gemstone hangs delicately from the chain, while the gem’s setting is...
    £261.79
    £261.79

For Your Peace of Mind

60 Day Returns

Sustainably Made

Free UK Delivery

Certified Stones

Free Ring Resizing

Made in London

OUR INITIATIVES

Women Empowerment

Supporting local women to gain valuable skills, confidence, and opportunities through hands-on jewelry-making programs. Every participant is empowered to create a brighter future.

Tree for Every Order

For every purchase, we plant a tree to contribute to a greener, more sustainable world. Together, we’re helping the environment grow, one order at a time.

Education & Scholarships

Providing educational support and scholarships to UK students from underprivileged backgrounds. Empowering young minds to achieve their academic dreams and build brighter futures.

blogS

One Carat Diamond Ring Buying Guide

One Carat Diamond Ring Buying Guide

⚡ Quick Answer A one carat diamond ring is set with a diamond weighing exactly 0.20g — the most popular...

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How to Remove a Stuck Ring From Your Finger

How to Remove a Stuck Ring From Your Finger

⚡ Quick Answer The safest way to remove a stuck ring is to first reduce any swelling by elevating your...

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12 Proven Ways to Secretly Find Your Partner’s Ring Size

12 Proven Ways to Secretly Find Your Partner’s Ring Size

Quick Answer The most reliable way to secretly find your partner's ring size is to borrow one of their existing...

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How To Tell If A Diamond Is Real

How To Tell If A Diamond Is Real

  Wondering whether your diamond is genuinely real? The safest way to know for certain is through professional testing —...

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Moissanite vs Diamond: The Complete Buying Guide

Moissanite vs Diamond: The Complete Buying Guide

Moissanite vs Diamond: The Complete UK Buying Guide (2025) – Finediam Quick Answer Moissanite and diamonds are two entirely different...

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Choose from lab-grown diamonds (D colour, VVS clarity) or natural diamonds (F–G colour, VS–SI clarity) across solitaire pendants, halo designs, initial pendants, tennis necklaces and more.

UK Hallmarked London • Free Tracked UK Delivery • Luxury Gift Box Included • 60-Day Returns

Every piece arrives beautifully presented in a luxury Finediam gift box — perfect for gifting or a timeless addition to your own collection. Bespoke designs available — contact our Hatton Garden team for custom requests.