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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  • Lab Diamond Hamsa Hand Pendant in Sterling Silver
    Finediam

    Lab Diamond Hamsa Hand Pendant in Sterling Silver

    ✨Product Description: Exude meaningful elegance with this beautiful Lab Diamond Hamsa Hand Pendant, crafted in sterling silver with delicate diamond sparkle. This pendant features a symbolic Hamsa hand design, set with lab diamonds across the front for a bright and refined finish. The design...
    £171.94
    £171.94
  • 1.00ct Lab Diamond Cross Pendant With Chain1.00ct Lab Diamond Cross Pendant With Chain
    Finediam

    1.00ct Lab Diamond Cross Pendant With Chain 9k White Gold

    ✨Product Description: Exude classic elegance with this beautiful 1.00Ct Lab Diamond Channel Cross Pendant, designed with a clean cross shape and refined diamond sparkle. This pendant features lab diamonds set through the centre of the cross in a sleek channel-style design. The polished border...
    £889.06
    £889.06
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
  • 1Ct Lab Diamond Cross Pendant Necklace in 9K Gold1Ct Lab Diamond Cross Pendant Necklace in 9K Gold
    Finediam

    1Ct Lab Diamond Cross Pendant Necklace in 9K Gold 9k White Gold

    ✨Product Description: Exude timeless simplicity with this elegant 1Ct Lab Diamond Cross Pendant Necklace, designed with a classic cross shape and refined diamond sparkle. This necklace features lab diamonds set across the cross pendant, creating a bright and graceful look that is perfect for...
    £552.10
    £552.10
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
  • 0.25Ct Lab Diamond Cross Pendant Necklace with Chain0.25Ct Lab Diamond Cross Pendant Necklace with Chain
    Finediam

    0.25Ct Lab Diamond Cross Pendant Necklace with Chain 9K White Gold

    ✨Product Description: Exude delicate elegance with this beautiful 0.25Ct Lab Diamond Cross Pendant Necklace, crafted with classic sparkle and meaningful style. This necklace features round lab diamonds arranged in a traditional cross design, creating a bright and graceful finish. Its lightweight and elegant style...
    £370.66
    £370.66
    • 9K White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
  • Round Sapphire Lab Diamond Halo Necklace with ChainRound Sapphire Lab Diamond Halo Necklace with Chain
    Finediam

    Round Sapphire Lab Diamond Halo Necklace with Chain

    ✨Product Description: Exude timeless elegance with this stunning Round Sapphire Lab Diamond Halo Necklace, designed with a deep blue sapphire centre stone and a sparkling lab diamond halo. This necklace features a round blue sapphire at the centre, surrounded by brilliant lab grown diamonds...
    £275.62
    £275.62
  • 1.00Ct Round Lab Grown Diamond Halo Pendant | Pave Pendant Without Chain1.00Ct Round Lab Grown Diamond Halo Pendant | Pave Pendant Without Chain
    Finediam

    1.00Ct Round Lab Grown Diamond Halo Pendant | Pave Pendant Without Chain 9k White Gold

    ✨Product Description:- Discover this elegant 1.00Ct Round Lab Grown Diamond Halo Pendant, featuring a brilliant round centre diamond surrounded by a sparkling pavé-set halo. Designed to maximise brilliance, the halo setting enhances the fire and sparkle of the centre stone, creating a timeless and luxurious...
    £603.94
    £603.94
    • 9k White Gold
    • 9k Rose Gold
    • 9k Yellow Gold
  • 0.70Ct Solitaire Round Lab Diamond Halo Pendant With Chain0.70Ct Solitaire Round Lab Diamond Halo Pendant With Chain
    Finediam

    0.70Ct Solitaire Round Lab Diamond Halo Pendant With Chain

    ✨Product Description: Discover this elegant Solitaire Round Lab Diamond Halo Pendant, featuring a brilliant round lab-grown diamond at the centre, surrounded by a halo of sparkling diamonds for enhanced brilliance and fire. The classic solitaire design combined with a halo setting creates a timeless...
    £733.54
    £733.54
  • Emerald Cut Lab Diamond Halo Pendant Necklace in White GoldEmerald Cut Lab Diamond Halo Pendant Necklace in White Gold
    Finediam

    Emerald Cut Lab Diamond Halo Pendant Necklace in White Gold

    ✨Product Description: Exude refined elegance with this stunning Emerald Cut Lab Diamond Halo Pendant Necklace, crafted with a sophisticated emerald-cut centre stone and sparkling diamond halo. This pendant features a beautiful emerald-cut diamond at the centre, surrounded by a brilliant halo of round diamonds...
    From £1,277.86
    From £1,277.86
  • 0.60Ct Round Lab Grown Diamond Halo Pendant Necklace in White Gold With Chain0.60Ct Round Lab Grown Diamond Halo Pendant Necklace in White Gold With Chain
    Finediam

    0.60Ct Round Lab Grown Diamond Halo Pendant Necklace in White Gold With Chain

    ✨Product Description: Discover this elegant 0.60Ct Round Lab Grown Diamond Halo Pendant Necklace, featuring a brilliant round centre diamond surrounded by a sparkling halo of lab-grown diamonds. The halo setting enhances the size and brilliance of the centre stone, creating a timeless and radiant...
    £1,105.06
    £1,105.06
  • Heart Shape Solitaire Diamond Necklace | Heart Diamond Necklace in Gold With ChainHeart Shape Solitaire Diamond Necklace | Heart Diamond Necklace in Gold With Chain
    Finediam

    Heart Shape Solitaire Diamond Necklace | Heart Diamond Necklace in Gold With Chain

    ✨Product Description: Discover this elegant Heart Shape Solitaire Diamond Necklace, featuring a stunning single diamond set within a delicate heart design. The solitaire diamond offers maximum brilliance, creating a timeless and sophisticated look. Perfect for romantic gifting or everyday elegance, this necklace symbolises love...
    £379.30
    £379.30

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.