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Best Seller Diamond Necklaces – Solitaire, Halo, Pendant & Tennis Designs

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  • 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 £251.75
    £540.00
    From £251.75
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Natural Baguette & Round Diamond Cross Pendant1.25Ct Natural Baguette & Round Diamond Cross Pendant
    Finediam

    1.25 Ct Natural Baguette & Round Diamond Cross Pendant | 9K White Gold

    ✨Product Description:- Exude elegance with this stunning 1.25 Ct Natural Baguette & Round Diamond Cross Pendant, designed to make a bold statement. Handcrafted with precision, this pendant features a dazzling combination of baguette and round diamonds, set in your choice of 9K/18K gold or...
    £1,603.80
    £3,562.92
    £1,603.80
  • 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 £173.99
    £540.00
    From £173.99
    • 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 £251.75
    £540.00
    From £251.75
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Baguette & Round Diamond Cross Pendant | 0.35 Ct & 0.50 Ct | 9K/18K Gold or PlatinumBaguette & Round Diamond Cross Pendant | 0.35 Ct & 0.50 Ct | 9K/18K Gold or Platinum
    Finediam

    Baguette & Round Diamond Cross Pendant | 0.35 Ct & 0.50 Ct | 9K/18K Gold or Platinum 9k White Gold

    ✨Product Description:- Embrace timeless elegance with this Baguette & Round Diamond Cross Pendant, available in two stunning diamond weights: 0.35 Ct and 0.50 Ct. Expertly crafted with a combination of baguette and round diamonds, each pendant is set in your choice of 9K/18K gold...
    From £1,166.40
    From £1,166.40
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • 0.25ct – 5.00ct Round Diamond Prong Set Cross Pendant in 9k and 18k Gold0.25ct – 5.00ct Round Diamond Prong Set Cross Pendant in 9k and 18k Gold
    Finediam

    0.25ct – 5.00ct Round Diamond Prong Set Cross Pendant in 9k and 18k Gold 9k White Gold

    ✨ Product Description: Elegant and full of meaning, this classic diamond cross pendant features meticulously prong-set round brilliant diamonds, available in sizes from 0.25ct to 5.00ct. Whether you choose a delicate sparkle or a bold statement, this pendant is crafted to reflect light, grace,...
    From £358.67
    From £358.67
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Prong Set Round Diamond Cross Pendant | 0.15 Ct to 5.50 CtProng Set Round Diamond Cross Pendant | 0.15 Ct to 5.50 Ct
    Finediam

    Prong Set Round Diamond Cross Pendant | 0.15 Ct to 5.50 Ct 9k White Gold

    ✨Product Description:- Make a bold and elegant statement with this Round Diamond Cross Pendant, available in a range of carat weights from 0.15 Ct to 5.50 Ct. Each diamond is expertly set in a prong setting to enhance the brilliance and clarity of the...
    From £436.43
    From £436.43
    • 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 £251.75
    £540.00
    From £251.75
    • 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 £193.43
    £432.00
    From £193.43
    • 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 £251.75
    £540.00
    From £251.75
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Oval Cut Emerald & Diamond Cluster Pendant in 18K White Gold - Halo DesignOval Cut Emerald & Diamond Cluster Pendant in 18K White Gold - Halo Design
    Finediam

    Oval Cut Emerald & Diamond Cluster Pendant in 18K White Gold - Halo Design

    ✨Product Description:- Celebrate elegance and individuality with our Cluster Diamond Birthstone Pendant Collection, featuring the timeless beauty of Emerald, Ruby, and Sapphire gemstones surrounded by a halo of natural round brilliant diamonds, finely set in 18K White Gold. > Emerald – May Birthstone The...
    £684.29
    £684.29
  • Pear Black Onyx & Diamond Rose Gold Pendant NecklacePear Black Onyx & Diamond Rose Gold Pendant Necklace
    Finediam

    Pear Black Onyx & Diamond Rose Gold Pendant Necklace Sterling Silver

    Elegant and sophisticated, this pear-shaped black onyx and diamond pendant is a timeless piece designed to elevate your everyday style. The deep, rich hue of the 12x8mm AAA-grade black onyx stone is perfectly complemented by the brilliant sparkle of a genuine white diamond accent....
    From £300.35
    From £300.35
    • Sterling Silver
    • 9k White Gold
    • 9k Rose Gold
    • 9k Yellow Gold
  • Baguette Cluster Diamond Cross Necklace in Gold or PlatinumBaguette Cluster Diamond Cross Necklace in Gold or Platinum
    Finediam

    Baguette Cluster Diamond Cross Necklace in Gold or Platinum 9k White Gold

    Product Description:- Exude distinctive elegance with this beautiful Baguette Cluster Diamond Cross Necklace, crafted with a unique cluster design and refined diamond sparkle. This necklace features baguette diamonds set in individual cluster sections, each surrounded by round diamonds to create a bold halo-style finish....
    From £2,439.72
    From £2,439.72
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Bezel Set Ruby Cross Necklace in Gold or PlatinumBezel Set Ruby Cross Necklace in Gold or Platinum
    Finediam

    Bezel Set Ruby Cross Necklace in Gold or Platinum 9k White Gold

    Product Description: Exude meaningful elegance with this beautiful Ruby Cross Necklace, crafted with rich red round rubies for a classic and eye-catching look. This necklace features round rubies arranged in a timeless cross design, with each gemstone securely held in a bezel setting. The...
    From £420.39
    From £420.39
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Ruby Accent Baguette Diamond Cross Necklace in Gold or PlatinumRuby Accent Baguette Diamond Cross Necklace in Gold or Platinum
    Finediam

    Ruby Accent Baguette Diamond Cross Necklace in Gold or Platinum 9k White Gold

    Product Description:- Exude distinctive elegance with this beautiful Ruby Accent Baguette Diamond Cross Necklace, designed with a refined blend of diamonds and rich red ruby details. This cross necklace features sleek baguette diamonds set through the centre of the design, creating a clean and...
    From £1,642.68
    From £1,642.68
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Blue Sapphire Accent Baguette Diamond Cross NecklaceBlue Sapphire Accent Baguette Diamond Cross Necklace
    Finediam

    Blue Sapphire Accent Baguette Diamond Cross Necklace 9k White Gold

    Product Description:- Exude refined elegance with this striking Blue Sapphire Accent Baguette Diamond Cross Necklace, designed with a luxurious blend of sparkling diamonds and deep blue sapphire details. This cross necklace features sleek baguette diamonds set through the centre of the design, giving the...
    From £1,642.68
    From £1,642.68
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • Art Deco Diamond Cross Pendant Necklace | Baguette & Round Cut DiamondsArt Deco Diamond Cross Pendant Necklace | Baguette & Round Cut Diamonds
    Finediam

    Art Deco Diamond Cross Pendant Necklace | Baguette & Round Cut Diamonds 9k White Gold

    Product Description:- Exude elegant charm with this beautiful Fleur-De-Lis Baguette Diamond Cross Necklace, designed with a unique vintage-inspired cross shape and brilliant diamond sparkle. This necklace features a graceful fleur-de-lis style cross design, set with a combination of baguette and round diamonds. The baguette...
    From £1,554.39
    From £1,554.39
    • 9k White Gold
    • 9k Yellow Gold
    • 9k Rose Gold
    • 18k White Gold
  • A pear lab-grown diamond solitaire pendant set in a metallic mount, displayed against a white background.Pear Diamond Pendant | Elegant Diamond Pendant Without Chain
    Finediam

    Pear Diamond Pendant | Elegant Diamond Pendant Without Chain

    Luxury Pear Diamond Pendant Necklace Elevate your jewellery collection with this exquisite Pear Diamond Pendant Necklace, expertly crafted to showcase timeless elegance and exceptional brilliance. Featuring a stunning pear-shaped diamond secured in a classic four-prong setting and suspended from a refined pavé-set V-bail, this...
    From £203.15
    From £203.15
  • Triangle Diamond Pendant | Lab Grown Diamond Necklace Without ChainTriangle Diamond Pendant | Lab Grown Diamond Necklace Without Chain
    Finediam

    Triangle Diamond Pendant | Lab Grown Diamond Necklace Without Chain

    ✨Product Description:- Timeless elegance meets modern sustainability with this stunning Round Lab-Grown Diamond Solitaire Pendant. Designed for those who appreciate simplicity and luxury, this pendant features a brilliant D color (colorless) and VVS clarity round-cut diamond 💎.Shop this unique Triangle Diamond Pendant Necklace, featuring...
    From £204.12
    £526.18
    From £204.12
  • A marquise-shaped lab grown diamond halo pendant necklace set in 18K white gold, accompanied by an 18K white gold adjustable chain.Marquise Cut Lab Grown Diamond Halo Necklace in 9K Gold With Chain
    Finediam

    Marquise Cut Lab Grown Diamond Halo Necklace in 9K Gold With Chain

    Discover this stunning Marquise Cut Lab Grown Diamond Halo Necklace, featuring a beautifully shaped marquise-cut centre diamond surrounded by a sparkling halo of lab-grown diamonds. The elongated design enhances brilliance and creates an elegant, flattering look on the neckline. Crafted in 9K gold with...
    From £708.59
    From £708.59

Elevate your style with FineDiam’s best-selling diamond necklaces, celebrated for their elegance, sparkle, and timeless appeal. This curated collection features dazzling designs, including classic solitaire pendants, radiant halo styles, sleek bar necklaces, and luxurious diamond tennis necklaces.

Choose from premium metals — luminous white gold, romantic rose gold, traditional yellow gold, opulent 9K or 18K gold, and enduring platinum. Whether you’re searching for a signature everyday piece, a glamorous gift, or a statement accessory for a special occasion, our most-loved diamond necklaces offer exceptional craftsmanship and unmatched beauty.

Each necklace is set with carefully selected natural or lab-grown diamonds, ensuring lasting brilliance and sophistication for years to come.

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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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.