18ct Gold Diamond Necklaces & Pendants

Our 18ct gold diamond necklaces and pendants combine the warmth of fine gold with the brilliance of carefully set diamonds, creating pieces that move effortlessly from daywear to evening elegance. Since 1946, Goodwins Antiques has curated exceptional antique jewellery selected for beauty, craftsmanship, and enduring value.

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31 pieces · updated weekly

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  • 18ct Gold Diamond and Sapphire Bow Brooch/ Pendant, Circa 1990

    18ct Gold Diamond and Sapphire Bow Brooch/ Pendant, Circa 1990

    £4,500
  • 18ct White Gold Square Cluster Diamond Pendant, 0.40ct

    18ct White Gold Square Cluster Diamond Pendant, 0.40ct

    £1,465
  • 18ct White Gold Seven Stone Diamond Butterfly Pendant

    18ct White Gold Seven Stone Diamond Butterfly Pendant

    £1,385
  • Vintage 18ct Gold Seven Diamond Daisy Cluster Pendant

    Vintage 18ct Gold Seven Diamond Daisy Cluster Pendant

    £945
  • 18ct White Gold Single Stone Diamond Pendant, 0.25ct

    18ct White Gold Single Stone Diamond Pendant, 0.25ct

    £1,043
  • 18ct Gold and Platinum Old Cut Diamond Pendant, 0.38ct

    18ct Gold and Platinum Old Cut Diamond Pendant, 0.38ct

    £2,545
  • 18ct Gold 0.20ct Brilliant Cut Diamond Pendant

    18ct Gold 0.20ct Brilliant Cut Diamond Pendant

    £1,235
  • 18ct White Gold 0.25ct Single Stone Diamond Pendant

    18ct White Gold 0.25ct Single Stone Diamond Pendant

    £1,045
  • 18ct White Gold 6.5x7mm Pearl and Diamond Pendant on 18ct Gold Chain

    18ct White Gold 6.5x7mm Pearl and Diamond Pendant on 18ct Gold Chain

    £850
  • 18ct White Gold 0.29ct Diamond Chain Necklace

    18ct White Gold 0.29ct Diamond Chain Necklace

    £2,100
  • 18ct Gold Ruby and Diamond Daisy Cluster Claw-Set Pendant

    18ct Gold Ruby and Diamond Daisy Cluster Claw-Set Pendant

    £2,410
  • Antique Victorian 18ct Gold Pearl and Diamond Pendant, Circa 1880

    Antique Victorian 18ct Gold Pearl and Diamond Pendant, Circa 1880

    £5,950
  • Antique Victorian 18ct Gold and Silver 4.00ct Old Cut Diamond Pendant & Brooch, Circa 1860

    Antique Victorian 18ct Gold and Silver 4.00ct Old Cut Diamond Pendant & Brooch, Circa 1860

    £6,950
  • 18ct White Gold 3.06ct Diamond Line Necklet

    18ct White Gold 3.06ct Diamond Line Necklet

    £4,950
  • Victorian 18ct Gold Turquoise and Diamond Snake Necklace, Circa 1860

    Victorian 18ct Gold Turquoise and Diamond Snake Necklace, Circa 1860

    £6,950
  • Antique Victorian 18ct Gold Diamond Brooch/Pendant

    Antique Victorian 18ct Gold Diamond Brooch/Pendant

    £4,250
  • Antique 18ct White Gold Sapphire and Diamond Lavalier Pendant

    Antique 18ct White Gold Sapphire and Diamond Lavalier Pendant

    £5,425
  • 1930s Platinum and 18ct Gold Aquamarine and Diamond Drop Pendant

    1930s Platinum and 18ct Gold Aquamarine and Diamond Drop Pendant

    £4,950
  • 18ct Yellow Gold Aquamarine and Diamond Necklet

    18ct Yellow Gold Aquamarine and Diamond Necklet

    £1,500
  • 18ct gold circular old cut diamond set pendant with bow design

    18ct gold circular old cut diamond set pendant with bow design

    £6,950
  • Antique 18ct Gold and Platinum 1.15ct Diamond Pendant, Circa 1915

    Antique 18ct Gold and Platinum 1.15ct Diamond Pendant, Circa 1915

    £4,950
  • 18ct White Gold Sapphire and Diamond set Bow Pendant, London 1990

    18ct White Gold Sapphire and Diamond set Bow Pendant, London 1990

    £1,695
  • 18ct Gold Pink Sapphire and Old Cut Diamond Pendant

    18ct Gold Pink Sapphire and Old Cut Diamond Pendant

    £2,495
  • 18ct Yellow Gold Diamond-Set Circle Pendant

    18ct Yellow Gold Diamond-Set Circle Pendant

    £1,975

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