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A hand-crafted piece of diamond jewellery is a timeless addition... Read More to any jewellery box. A symbol of love, eternity and sophistication, there’s simply no better way of expressing your feelings than with a piece of diamond jewellery.


FROM sparkling diamond earrings, elegant golden bands and draped silver necklaces, our extensive range of jewellery offers a vast selection of exquisite designs and timeless beauty.

Made for any style or taste, our collection has been selected for its high quality and unique design aesthetics, providing splendour and elegance for you and your loved ones. Browse our pre-owned jewellery collection here.

18ct gold Diamond Pre-Owned Jewellery

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20 Results

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  1. Pre-Owned 18ct Yellow Gold 0.90 Carat Diamond Set 5mm Band Ring
    Pre-Owned 18ct Yellow Gold 0.90 Carat Diamond Set 5mm Band Ring
    £925.00
    From £38.58 Per Month at 0.00% APR*
  2. Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Cluster Ring
    £575.00
    From £24.15 Per Month at 0.00% APR*
  3. Pre-Owned 18ct Yellow Gold 0.30 Carat Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold 0.30 Carat Diamond Cluster Ring
    £289.00
    From £12.08 Per Month at 0.00% APR*
  4. Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Cluster Ring
    £475.00
    From £19.84 Per Month at 0.00% APR*
  5. Pre-Owned 18ct White Gold 0.66 Carat Diamond Cluster Ring
    Pre-Owned 18ct White Gold 0.66 Carat Diamond Cluster Ring
    £575.00
    From £24.15 Per Month at 0.00% APR*
  6. Pre-Owned 18ct White Gold 0.40 Carat Diamond Halo Cluster Ring
    Pre-Owned 18ct White Gold 0.40 Carat Diamond Halo Cluster Ring
    £495.00
    From £20.74 Per Month at 0.00% APR*
  7. Pre-Owned 18ct White Gold Diamond Solitaire & Shoulders Ring
    Pre-Owned 18ct White Gold Diamond Solitaire & Shoulders Ring
    £549.00
    From £22.99 Per Month at 0.00% APR*
  8. Pre-Owned 18ct Yellow Gold 1.00 Carat Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold 1.00 Carat Diamond Cluster Ring
    £625.00
    From £26.09 Per Month at 0.00% APR*
  9. Pre-Owned 18ct White Gold 0.50 Carat Diamond Twist Ring
    Pre-Owned 18ct White Gold 0.50 Carat Diamond Twist Ring
    £549.00
    From £22.99 Per Month at 0.00% APR*
  10. Pre-Owned 18ct White Gold 0.37 Carat Diamond Oval Cluster Ring
    Pre-Owned 18ct White Gold 0.37 Carat Diamond Oval Cluster Ring
    £395.00
    From £16.65 Per Month at 0.00% APR*
  11. Pre-Owned 18ct Rose Gold 0.51 Carat Diamond Halo Ring
    Pre-Owned 18ct Rose Gold 0.51 Carat Diamond Halo Ring
    £695.00
    From £29.15 Per Month at 0.00% APR*
  12. Pre-Owned 18ct White Gold 0.86 Carat Diamond Cluster Ring
    Pre-Owned 18ct White Gold 0.86 Carat Diamond Cluster Ring
    £895.00
    From £37.33 Per Month at 0.00% APR*
  13. Pre-Owned 18ct Yellow Gold Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold Diamond Cluster Ring
    £259.00
  14. Pre-Owned 18ct Yellow Gold Diamond Cluster Ring
    Pre-Owned 18ct Yellow Gold Diamond Cluster Ring
    £1,195.00
    From £49.83 Per Month at 0.00% APR*
  15. Pre-Owned 18ct White Gold Diamond Wave Set Band Ring
    Pre-Owned 18ct White Gold Diamond Wave Set Band Ring
    £395.00
    From £16.65 Per Month at 0.00% APR*
  16. Pre-Owned 18ct Yellow Gold 0.33 Carat Diamond Wishbone Ring
    Pre-Owned 18ct Yellow Gold 0.33 Carat Diamond Wishbone Ring
    £325.00
    From £13.58 Per Month at 0.00% APR*
  17. Pre-Owned 18ct White Gold Diamond Wave Wishbone Ring
    Pre-Owned 18ct White Gold Diamond Wave Wishbone Ring
    £165.00
  18. Pre-Owned 18ct White Gold 0.75 Carat Diamond Multi Row Band Ring
    Pre-Owned 18ct White Gold 0.75 Carat Diamond Multi Row Band Ring
    £425.00
    From £17.90 Per Month at 0.00% APR*
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Filters
Now Shopping by
  1. Material
    18ct gold
  2. Gemstone
    Diamond
  3. Gemstone Colour
    White
  4. Condition
    Pre-Owned
  5. Diamond Cut
    Brilliant
  6. Number of Stones
    8+
Clear
Material
  1. 18ct gold 20
Gold Colour
  1. Yellow Gold 9
  2. White Gold 10
Gemstone
  1. Diamond 20
Gemstone Colour
  1. White 20
Condition
  1. Pre-Owned 20
Diamond Carat Range
  1. 0.25ct - 0.49ct 8
  2. 0.50ct - 0.74ct 5
  3. 0.75ct - 0.99ct 3
  4. 1.00ct - 1.49ct 2
Diamond Clarity
  1. SI 6
  2. SI1 2
  3. SI2 2
Diamond Colour
  1. G-H 2
  2. I - L 8
Diamond Cut
  1. Brilliant 20
Gender
  1. For Her 19
Number of Stones
  1. 8+ 20
Setting Style
  1. Bead 2
  2. Mixed 2
  3. Claw 13
Price
£
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Finance is provided by Omni Capital Retail Finance Ltd which is a credit provider/lender. William May Jewellers does not receive payment for introducing customers to Omni Capital Retail Finance. Omni Capital Retail Finance Ltd finance options are subject to individual status; terms and conditions apply. Omni Capital Retail Finance Ltd is registered in England and Wales with company number 7232938. Registered address: 10 Norwich Street, London, EC4A 1BD.

Authorised and regulated by the Financial Conduct Authority, Firm Reference Number: FCA0123456.

PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH. PayPal Credit: Terms and conditions apply. Credit subject to status, UK residents only, OFRISCATE LIMITED acts as a broker and offers finance from a restricted range of finance providers. PayPal Pay in 3 is not regulated by the Financial Conduct Authority. Pay in 3 eligibility is subject to status and approval. 18+. UK residents only. Pay in 3 is a an unregulated credit agreement. Check if affordable and how you will repay. May make other borrowing more difficult or expensive. See product terms for more details.