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
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  • Alphabetically, A-Z
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  • 10.50 Carat Lab Grown Round Diamond Graduated Tennis Necklace Anniversary Gift10.50 Carat Lab Grown Round Diamond Graduated Tennis Necklace Mother's Day
    Finediam

    10.50 Carat Lab Grown Round Diamond Tennis Necklace in 14K Gold 14k White Gold

    ✨Product Specifications:- Shop this exquisite Diamond Tennis Necklace in White Gold, featuring round brilliant diamonds meticulously set in a classic tennis style. With a total of 10.50 carats, this necklace offers exceptional brilliance and elegance. The graduated design ensures that each diamond sparkles with...
    £3,250.00
    £3,250.00
    • 14k White Gold
    • 14k Yellow Gold
    • 14k Rose Gold
  • Attar Tennis Necklace 7.5ct to 17ct Gold PlatinumDiamond Tennis Necklace | Luxury Gold Jewelry | 7.5ct to 17ct
    Finediam

    Diamond Tennis Necklace | Luxury Gold Jewelry | 7.5ct to 17ct 9k White Gold

    ✨Product Description: Shop the stunning Diamond Tennis Necklace in white gold, featuring a continuous line of sparkling lab-grown and natural diamonds. Available in diamond weights from 7.5ct to 17ct, this necklace offers a luxurious and elegant design that is perfect for formal events, special...
    From £4,326.30
    £10,815.77
    From £4,326.30
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Ashen Diamond Tennis Necklace 8ct Gold PlatinumAshen Diamond Tennis Necklace 8ct Gold Platinum
    Finediam

    Diamond Tennis Necklace in Gold or Platinum 9k White Gold

    ✨Product Description: Exude timeless luxury with this stunning Diamond Tennis Necklace, designed with a continuous row of sparkling diamonds for a classic and elegant finish. This necklace features beautifully matched diamonds set across the full design, creating exceptional brilliance and a refined statement look....
    From £5,330.32
    £13,325.80
    From £5,330.32
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Aquae Cluster Diamond Necklace 5ct to 8ct Gold PlatinumAquae Cluster Diamond Necklace 5ct to 8ct Gold Platinum
    Finediam

    Cluster Diamond Necklace 5ct to 8ct Gold Platinum 9k White Gold

    ✨Product Description: This stunning Cluster Diamond Necklace features up to 8ct of exceptional lab-grown diamonds set in 9K & 18K Gold and Platinum. A perfect combination of craftsmanship and elegance, the necklace showcases a cluster of diamonds chosen for their brilliant sparkle and clarity....
    From £4,522.39
    £12,623.69
    From £4,522.39
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Angel Baguette Brilliant Necklace 3ct to 4.5ct Gold PlatinumAngel Baguette Brilliant Necklace 3ct to 4.5ct Gold Platinum
    Finediam

    Baguette Diamond Necklace 3ct to 4.5ct Gold & Platinum 9k White Gold

    ✨Product Description: Elevate your elegance with this stunning Baguette Diamond Necklace, featuring a total diamond weight of 3ct to 4.5ct. Expertly handcrafted in 9K or 18K rose gold or platinum, the necklace showcases multiple sparkling baguette diamonds set in a luxurious halo design. Perfect...
    From £2,617.40
    £6,543.50
    From £2,617.40
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Fresh Cluster Necklace 9.5ct Gold and PlatinumFresh Cluster Necklace 9.5ct Gold and Platinum
    Finediam

    Diamond Tennis Necklace Pendant 9.5ct Gold – Lab-Grown & Natural 9k White Gold

    ✨Product Description: Exude sophistication with this Diamond Tennis Necklace Pendant, featuring a total 9.5ct of sparkling diamonds in a luxurious Y-shape design. Choose Lab-Grown D/VVS diamonds or Natural F/SI diamonds. Handcrafted in 9K or 18K gold, UK Hallmarked London for authenticity and premium craftsmanship....
    From £6,588.47
    £16,471.19
    From £6,588.47
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Natural Diamond Paper Clip Necklace 28ct Gold PlatinumNatural Diamond Paper Clip Necklace 28ct Gold Platinum
    Finediam

    Natural Diamond Paper Clip Necklace 28ct Gold Platinum 9k White Gold

    ✨Product Description: Elevate your style with this exquisite Natural Diamond Paper Clip Necklace, crafted in premium gold and platinum. Featuring a total diamond weight of 28 carats, this necklace combines timeless elegance with modern design. Perfect for luxury events or as an unforgettable gift,...
    From £15,140.78
    £37,851.95
    From £15,140.78
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Dwale Heart Diamond Necklace 18ct Gold PlatinumDwale Heart Diamond Necklace 18ct Gold Platinum
    Finediam

    Heart Diamond Tennis Necklace in Gold | Cluster Diamond Necklace 9k White Gold

    ✨Product Description: Shop this elegant Heart Diamond Tennis Necklace, featuring a row of beautifully crafted heart-shaped necklace encrusted with sparkling 18.00Ct lab-grown diamonds. Designed to symbolize love and elegance, this necklace is perfect for gifting or adding a romantic touch to your jewelry collection....
    From £11,826.00
    £29,565.00
    From £11,826.00
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • David Diamond Tennis Necklace 5.5ct to 7ct Gold PlatinumDavid Diamond Tennis Necklace 5.5ct to 7ct Gold Platinum
    Finediam

    Diamond Tennis Necklace | Classic Diamond Necklace 9k White Gold

    ✨Product Description: Discover elegance with our White Gold Diamond Tennis Necklace, crafted to perfection with brilliant diamonds set in high-quality white gold. This timeless piece features a continuous line of sparkling diamonds, offering a refined and sophisticated look suitable for any occasion. Designed for...
    From £4,795.20
    £11,988.00
    From £4,795.20
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Tina Diamond Initial Pendant 0.1ct Gold A to Z(Without Chain )Tina Diamond Initial Pendant 0.1ct Gold A to Z(Without Chain )
    Finediam

    Diamond Initial Pendant | Custom A-Z Pendant Without Chain 9k White Gold

    ✨Product Description:- Showcase elegance with the Diamond Initial Pendant, featuring the letter ‘A-Z’ adorned with sparkling diamonds in a chic and timeless design. This personalized pendant is available for all letters from A to Z, making it the perfect gift for yourself or a loved...
    From £164.07
    £615.28
    From £164.07
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Molly Tennis Necklace 3ct to 28ct Gold PlatinumMolly Tennis Necklace 3ct to 28ct Gold Platinum
    Finediam

    Graduated Diamond Tennis Necklace | Sparkling Round Diamond Necklace 9k White Gold

    ✨Product Description: Shop this elegant Graduated Diamond Tennis Necklace, featuring brilliant round diamonds that gradually increase in size towards the centre, creating a stunning and eye-catching sparkle. Expertly crafted in luxurious gold, this necklace offers a perfect balance of classic design and modern elegance. The...
    From £2,797.67
    £6,994.19
    From £2,797.67
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Jodie Emerald Necklace 25ct Gold and PlatinumJodie Emerald Necklace 25ct Gold and Platinum
    Finediam

    Emerald and Diamond Tennis Necklace | Luxury Green Gemstone Jewelry 9k White Gold

    ✨Product Description: Discover the elegance of this Emerald and Diamond Necklace, beautifully crafted in gold and platinum. Featuring vibrant green emeralds paired with sparkling diamonds, this necklace offers a perfect balance of luxury and timeless style. Designed to stand out, the rich emerald tones...
    From £11,221.02
    £40,986.00
    From £11,221.02
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Diamond Bar Pendant Vertical Multi Row Cluster Design in Gold & PlatinumDiamond Bar Pendant Vertical Multi Row Cluster Design in Gold & Platinum
    Finediam

    Diamond Bar Pendant Vertical Multi Row Cluster Design in Gold & Platinum 9k White Gold

    ✨Product Description:- Exude elegance with this sophisticated Lab Grown Diamond Bar Pendant Necklace, designed to combine contemporary style with timeless brilliance. Featuring a sleek vertical bar design adorned with a sparkling certified lab-grown diamond, this refined pendant offers a modern interpretation of the classic...
    From £223.78
    £540.00
    From £223.78
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Lab Grown Round Diamond Drop Pendant in 18K White Gold – Pave Set Halo Style UK HallmarkedLuxury Lab Grown Round Diamond Pendant – Pave Set Halo in Gold & Platinum
    Finediam

    Cluster Halo Diamond Drop Pendant Three Stone | Vertical Design 9k White Gold

    ✨Product Description:- Exude elegance with this stunning Cluster Halo Diamond Drop Pendant, designed in a graceful vertical formation to maximise brilliance and sophistication. Featuring three round pavé-set diamond clusters, each surrounded by a delicate halo of sparkling diamonds, this pendant creates a beautiful layered...
    From £171.94
    £432.00
    From £171.94
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Lab Grown Round Diamond Drop Pendant in 18K White Gold – UK HallmarkedUK Made Round Diamond Drop Pendant for Women – Certified D-E/VS Diamond
    Finediam

    Three Stone Diamond Drop Pendant in Bezel Set - Vertical Design in Gold 9k White Gold

    ✨Product Description:- Celebrate life's meaningful moments with this elegant Three Stone Diamond Journey Pendant, beautifully designed in a graceful vertical arrangement that symbolises the journey of love, growth, and cherished memories. Featuring three round brilliant diamonds set in smooth bezel settings, this timeless pendant...
    From £223.78
    £540.00
    From £223.78
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Six Prong Lab Grown Diamond Pendant in 18K White Gold – UK HallmarkedLuxury Round Solitaire Pendant – Available in Gold & Platinum UK Hallmarked
    Finediam

    Minimal Diamond Necklace | Solitaire Diamond Pendant With Chain

    Radiate timeless brilliance with this Lab Grown Minimal Diamond Necklace, delicately set in a classic six-prong mount for exceptional sparkle and security. Each pendant is handcrafted in Hatton Garden, London, featuring a certified lab-grown diamond (D–E Colour / VS Clarity) that mirrors the beauty...
    From £232.42
    £540.00
    From £232.42
  • Diamond Initial Pendant with Baguette and Round DiamondsDiamond Initial Pendant with Baguette and Round Diamonds
    FineDiam

    Diamond Initial Pendant with Baguette and Round Diamonds 9k Yellow Gold

    ✨Product Description:- Make a sparkling statement with our  Diamond Initial Pendant with Baguette and Round Diamonds — a true symbol of elegance and individuality. Crafted with premium natural or lab-grown diamonds, this exquisite piece offers unmatched brilliance and timeless beauty. Designed for everyday elegance, this...
    From £1,727.14
    From £1,727.14
    • 9k Yellow Gold
    • 9k Rose Gold
    • 9k White Gold
    • 18k White Gold
  • Paved Initial Diamond Pendant Necklace | Custom A-Z Pendant Without ChainPaved Initial Diamond Pendant Necklace | Custom A-Z Pendant Without Chain
    FineDiam

    Paved Initial Diamond Pendant Necklace | Custom A-Z Pendant Without Chain 9k White Gold

    ✨ Product Description:-Make a sparkling statement with our Paved Initial Diamond Pendant Necklace — a true symbol of elegance and individuality. Crafted with premium natural or lab-grown diamonds, this exquisite piece offers unmatched brilliance and timeless beauty. Designed for everyday elegance, this pendant also makes...
    From £2,324.16
    From £2,324.16
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Paved Script Initial Diamond Pendant Without Chain | Lab Grown & Natural DiamondsPaved Script Initial Diamond Pendant Without Chain | Lab Grown & Natural Diamonds
    FineDiam

    Paved Script Initial Diamond Pendant Without Chain | Lab Grown & Natural Diamonds 9k White Gold

    ✨ Product Description:- Explore our collection of Paved Script Initial Diamond Pendant Necklaces, featuring custom letters from A to Z, crafted in white gold and adorned with sparkling lab-grown & natural diamonds. This elegant and personalized pendant is a perfect way to express individuality or...
    From £1,036.80
    From £1,036.80
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Paved Initial Diamond Pendant Necklace with Baguette & Round DiamondsPaved Initial Diamond Pendant Necklace with Baguette & Round Diamonds
    FineDiam

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

    ✨ Product Description:-Explore our luxurious Paved Initial Diamond Pendant Necklace, featuring custom letters from A to Z, beautifully crafted in gold and platinum. Designed with sparkling lab-grown diamonds, this pendant showcases a stylish mix of baguette and round cut diamonds for a bold, elegant finish....
    From £976.32
    From £976.32
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold

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.