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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 Jewellery

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302 Results

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  1. Pre-Owned 18ct White Gold Illusion Set Diamond Solitaire Ring
    Pre-Owned 18ct White Gold Illusion Set Diamond Solitaire Ring
    £229.00
  2. Pre-Owned 18ct Yellow & White Gold Diamond Crossover Dress Ring
    Pre-Owned 18ct Yellow & White Gold Diamond Crossover Dress Ring
    £525.00
    From £21.99 Per Month at 0.00% APR*
  3. Pre-Owned 18ct White Gold Diamond Set 5mm Wedding Band Ring
    Pre-Owned 18ct White Gold Diamond Set 5mm Wedding Band Ring
    £495.00
    From £20.74 Per Month at 0.00% APR*
  4. Pre-Owned 18ct White Gold Diamond Set 6mm Wedding Band Ring
    Pre-Owned 18ct White Gold Diamond Set 6mm Wedding Band Ring
    £469.00
    From £19.59 Per Month at 0.00% APR*
  5. Pre-Owned 18ct White Gold Diamond Set 4mm Wedding Band Ring
    Pre-Owned 18ct White Gold Diamond Set 4mm Wedding Band Ring
    £225.00
  6. Pre-Owned 18ct Yellow Gold Diamond Set Wave Wishbone Ring
    Pre-Owned 18ct Yellow Gold Diamond Set Wave Wishbone Ring
    £259.00
  7. Pre-Owned 18ct Yellow Gold 0.36 Carat Diamond Solitaire Ring
    Pre-Owned 18ct Yellow Gold 0.36 Carat Diamond Solitaire Ring
    £395.00
    From £16.65 Per Month at 0.00% APR*
  8. Pre-Owned 18ct White Gold 1.00 Carat Diamond Halo Cluster Ring
    Pre-Owned 18ct White Gold 1.00 Carat Diamond Halo Cluster Ring
    £995.00
    From £41.65 Per Month at 0.00% APR*
  9. Pre-Owned 18ct White Gold 0.44 Carat Diamond Solitaire Ring
    Pre-Owned 18ct White Gold 0.44 Carat Diamond Solitaire Ring
    £695.00
    From £29.15 Per Month at 0.00% APR*
  10. Pre-Owned 18ct Yellow Gold Diamond Set Wave Shaped Band Ring
    Pre-Owned 18ct Yellow Gold Diamond Set Wave Shaped Band Ring
    £295.00
    From £12.33 Per Month at 0.00% APR*
  11. Pre-Owned 18ct Yellow Gold Diamond Set Wave Wishbone Ring
    Pre-Owned 18ct Yellow Gold Diamond Set Wave Wishbone Ring
    £175.00
  12. Pre-Owned 18ct White Gold 1.33 Carat Diamond Pendant Necklace
    Pre-Owned 18ct White Gold 1.33 Carat Diamond Pendant Necklace
    £2,495.00
    From £104.15 Per Month at 0.00% APR*
  13. Pre-Owned 18ct Yellow & White Gold Diamond Set 4mm Wedding Ring
    Pre-Owned 18ct Yellow & White Gold Diamond Set 4mm Wedding Ring
    £215.00
  14. 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*
  15. Pre-Owned 18ct White Gold 0.16 Carat Diamond Solitaire Ring
    Pre-Owned 18ct White Gold 0.16 Carat Diamond Solitaire Ring
    £185.00
  16. 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*
  17. 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*
  18. Pre-Owned 18ct White Gold 0.26 Carat Diamond Graduated Band Ring
    Pre-Owned 18ct White Gold 0.26 Carat Diamond Graduated Band Ring
    £369.00
    From £15.49 Per Month at 0.00% APR*
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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.