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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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29 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 Gold Princess Cut Diamond Half Eternity Ring
    Pre-Owned 18ct Gold Princess Cut Diamond Half Eternity Ring
    £549.00
    From £22.99 Per Month at 0.00% APR*
  3. Pre-Owned 18ct White Gold Princess Cut Diamond Signet Style Ring
    Pre-Owned 18ct White Gold Princess Cut Diamond Signet Style Ring
    £549.00
    From £22.99 Per Month at 0.00% APR*
  4. 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*
  5. Pre-Owned 18ct Gold 0.75 Carat Mixed Cut Diamond Dress Ring
    Pre-Owned 18ct Gold 0.75 Carat Mixed Cut Diamond Dress Ring
    £595.00
    From £24.84 Per Month at 0.00% APR*
  6. Pre-Owned 18ct White Gold Princess Cut Diamond Band Ring
    Pre-Owned 18ct White Gold Princess Cut Diamond Band Ring
    £795.00
    From £33.25 Per Month at 0.00% APR*
  7. Pre-Owned 18ct Gold 0.20 Carat Princess Cut Diamond Cluster Ring
    Pre-Owned 18ct Gold 0.20 Carat Princess Cut Diamond Cluster Ring
    £225.00
  8. Pre-Owned 18ct White Gold Princess Cut Diamond Solitaire Ring
    Pre-Owned 18ct White Gold Princess Cut Diamond Solitaire Ring
    £375.00
    From £15.74 Per Month at 0.00% APR*
  9. Pre-Owned 18ct White Gold Princess Cut Diamond Solitaire Ring
    Pre-Owned 18ct White Gold Princess Cut Diamond Solitaire Ring
    £395.00
    From £16.65 Per Month at 0.00% APR*
  10. Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Eternity Ring
    Pre-Owned 18ct Gold 0.50ct Princess Cut Diamond Eternity Ring
    £469.00
    From £19.59 Per Month at 0.00% APR*
  11. Pre-Owned 18ct Gold Princess Cut Diamond 4 Stone Cluster Ring
    Pre-Owned 18ct Gold Princess Cut Diamond 4 Stone Cluster Ring
    £215.00
  12. Pre-Owned 18ct Gold Princess Cut Diamond Solitaire Twist Ring
    Pre-Owned 18ct Gold Princess Cut Diamond Solitaire Twist Ring
    £575.00
    From £24.15 Per Month at 0.00% APR*
  13. Pre-Owned 18ct Gold 0.78 Carat Mixed Cut Diamond Cluster Ring
    Pre-Owned 18ct Gold 0.78 Carat Mixed Cut Diamond Cluster Ring
    £795.00
    From £33.25 Per Month at 0.00% APR*
  14. Pre-Owned 18ct Gold 1.00ct Princess Cut Diamond Eternity Ring
    Pre-Owned 18ct Gold 1.00ct Princess Cut Diamond Eternity Ring
    £795.00
    From £33.25 Per Month at 0.00% APR*
  15. 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*
  16. Pre-Owned 18ct Gold Princess Cut Diamond Solitaire Twist Ring
    Pre-Owned 18ct Gold Princess Cut Diamond Solitaire Twist Ring
    £349.00
    From £14.58 Per Month at 0.00% APR*
  17. Pre-Owned 18ct Gold Princess Cut Diamond Half Eternity Ring
    Pre-Owned 18ct Gold Princess Cut Diamond Half Eternity Ring
    £449.00
    From £18.90 Per Month at 0.00% APR*
  18. Pre-Owned 18ct Gold 0.50 Carat Princess Cut Diamond Cluster Ring
    Pre-Owned 18ct Gold 0.50 Carat Princess Cut Diamond Cluster Ring
    £449.00
    From £18.90 Per Month at 0.00% APR*
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  1. Material
    18ct gold
  2. Gemstone
    Diamond
  3. Condition
    Pre-Owned
  4. Diamond Cut
    Princess
Clear
Material
  1. 18ct gold 29
Gold Colour
  1. Yellow Gold 10
  2. White Gold 19
Gemstone
  1. Diamond 29
Gemstone Colour
  1. White 8
Condition
  1. Pre-Owned 29
Diamond Carat Range
  1. 0.10ct - 0.24ct 6
  2. 0.25ct - 0.49ct 7
  3. 0.50ct - 0.74ct 11
  4. 0.75ct - 0.99ct 4
Diamond Clarity
  1. SI - VS 3
  2. SI 7
  3. SI1 7
  4. SI2 2
  5. I 2
  6. I1 2
Diamond Colour
  1. D - H 4
  2. G-H 2
  3. H 2
  4. H - I 4
  5. I - L 8
Diamond Cut
  1. Princess 29
Gender
  1. For Her 28
Number of Stones
  1. 1 12
  2. 4 6
  3. 7 2
  4. 8+ 6
Setting Style
  1. Tension 8
  2. Mixed 2
  3. Claw 16
  4. Channel 3
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.