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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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31 Results

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  1. Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Solitaire Ring
    Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Solitaire Ring
    £995.00
    From £41.65 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 0.50 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*
  4. 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*
  5. Pre-Owned 18ct White Gold Diamond Set Fancy Dress Ring
    Pre-Owned 18ct White Gold Diamond Set Fancy Dress Ring
    £1,075.00
    From £44.83 Per Month at 0.00% APR*
  6. Pre-Owned 18ct Gold 0.50ct Diamond Solitaire & Shoulders Ring
    Pre-Owned 18ct Gold 0.50ct Diamond Solitaire & Shoulders Ring
    £795.00
    From £33.25 Per Month at 0.00% APR*
  7. Pre-Owned 18ct Gold 0.65ct Diamond Solitaire & Shoulders Ring
    Pre-Owned 18ct Gold 0.65ct Diamond Solitaire & Shoulders Ring
    £1,095.00
    From £45.75 Per Month at 0.00% APR*
  8. Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Solitaire Ring
    Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Solitaire Ring
    £825.00
    From £34.50 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 Gold 0.50 Carat Diamond U-Shaped Band Ring
    Pre-Owned 18ct Gold 0.50 Carat Diamond U-Shaped Band Ring
    £495.00
    From £20.74 Per Month at 0.00% APR*
  11. Pre-Owned 18ct Gold 0.50ct Diamond Solitaire & Shoulders Ring
    Pre-Owned 18ct Gold 0.50ct Diamond Solitaire & Shoulders Ring
    £525.00
    From £21.99 Per Month at 0.00% APR*
  12. Pre-Owned 18ct Gold 0.53ct Diamond Solitaire & Shoulders Ring
    Pre-Owned 18ct Gold 0.53ct Diamond Solitaire & Shoulders Ring
    £495.00
    From £20.74 Per Month at 0.00% APR*
  13. Pre-Owned 18ct White Gold 0.72 Carat Princess Cut Diamond Ring
    Pre-Owned 18ct White Gold 0.72 Carat Princess Cut Diamond Ring
    £1,895.00
    From £79.15 Per Month at 0.00% APR*
  14. 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*
  15. Pre-Owned 18ct White Gold 0.50 Carat Diamond Trilogy Ring
    Pre-Owned 18ct White Gold 0.50 Carat Diamond Trilogy Ring
    £595.00
    From £24.84 Per Month at 0.00% APR*
  16. Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Trilogy Ring
    Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Trilogy Ring
    £695.00
    From £29.15 Per Month at 0.00% APR*
  17. Pre-Owned 18ct White Gold 0.68 Carat Diamond Solitaire Ring
    Pre-Owned 18ct White Gold 0.68 Carat Diamond Solitaire Ring
    £1,495.00
    From £62.33 Per Month at 0.00% APR*
  18. Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Solitaire Ring
    Pre-Owned 18ct Yellow Gold 0.50 Carat Diamond Solitaire Ring
    £875.00
    From £36.65 Per Month at 0.00% APR*
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Now Shopping by
  1. Material
    18ct gold
  2. Gemstone
    Diamond
  3. Condition
    Pre-Owned
  4. Diamond Carat Range
    0.50ct - 0.74ct
  5. Setting Style
    Claw
Clear
Material
  1. 18ct gold 31
Gold Colour
  1. Yellow Gold 13
  2. White Gold 17
Gemstone
  1. Diamond 31
Gemstone Colour
  1. White 6
Condition
  1. Pre-Owned 31
Diamond Carat Range
  1. 0.50ct - 0.74ct 31
Diamond Clarity
  1. VS 2
  2. SI - VS 4
  3. SI 4
  4. SI1 3
  5. SI2 3
  6. I1 8
Diamond Colour
  1. D - H 4
  2. G-H 5
  3. H 3
  4. H - I 5
  5. I - L 7
  6. L/M 2
Diamond Cut
  1. Brilliant 24
  2. Princess 5
Number of Stones
  1. 1 16
  2. 3 3
  3. 7 2
  4. 8+ 8
Setting Style
  1. Claw 31
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.