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The Antique Jewellery Company

Platinum & Diamond Jewellery

Explore antique and vintage platinum & diamond jewellery, handpicked for character, quality and craftsmanship.

  1. Art Deco Platinum Ring set with a Large Zircon with Baguette Diamond Shoulders
    Art Deco Platinum Ring set with a Large Zircon with Baguette Diamond ShouldersAU$17,600
  2. Early 20th Century French 18ct Gold & Platinum, Sapphire & Diamond Cluster Ring
    Early 20th Century French 18ct Gold & Platinum, Sapphire & Diamond Cluster RingAU$19,600
  3. Art Deco 18ct White Gold & Platinum, Rectangular Ring set with Two Square Cut Diamonds & Round Diamonds
    Art Deco 18ct White Gold & Platinum, Rectangular Ring set with Two Square Cut Diamonds & Round DiamondsAU$5,750
  4. Art Deco Platinum Rectangular Shaped Ring set with Baguette & Round Diamonds
    Art Deco Platinum Rectangular Shaped Ring set with Baguette & Round DiamondsAU$8,550
  5. Early 20th Century Platinum, Sapphire & Diamond Three Stone Ring
    Early 20th Century Platinum, Sapphire & Diamond Three Stone RingAU$5,950
  6. Edwardian 15ct Gold & Platinum, Opal & Diamond Bracelet
    Edwardian 15ct Gold & Platinum, Opal & Diamond BraceletAU$13,600
  7. Art Deco 18ct Gold & Platinum, Marquise Ring set with an Amethyst & Diamonds by Henry Barnett Joseph
    Art Deco 18ct Gold & Platinum, Marquise Ring set with an Amethyst & Diamonds by Henry Barnett JosephAU$5,950
  8. Early 20th Century French 18ct Gold & Platinum Earrings set with Diamonds
    Early 20th Century French 18ct Gold & Platinum Earrings set with DiamondsAU$3,350
  9. Edwardian 18ct Gold & Platinum Three Stone Diamond Crossover Ring
    Edwardian 18ct Gold & Platinum Three Stone Diamond Crossover RingAU$3,800
  10. Edwardian 18ct Gold & Platinum Two Stone Diamond Ring
    Edwardian 18ct Gold & Platinum Two Stone Diamond RingAU$5,350
  11. Art Deco 18ct White Gold & Platinum Geometric Ring set with Sapphires & Diamonds
    Art Deco 18ct White Gold & Platinum Geometric Ring set with Sapphires & DiamondsAU$9,350
  12. Art Deco Platinum, Hexagonal Emerald & Diamond Ring
    Art Deco Platinum, Hexagonal Emerald & Diamond RingAU$7,550
  13. French Belle Epoque 18ct Gold & Platinum Large Aquamarine & Diamond Drop Earrings
    French Belle Epoque 18ct Gold & Platinum Large Aquamarine & Diamond Drop EarringsAU$19,600
  14. Art Deco 18ct Gold & Platinum Diamond Ring
    Art Deco 18ct Gold & Platinum Diamond RingAU$4,550
  15. Early 20th Century Platinum Solitaire Ring set with a 1.55 Carat Diamond
    Early 20th Century Platinum Solitaire Ring set with a 1.55 Carat DiamondAU$10,600
  16. Art Deco 18ct Gold & Platinum, Sapphire & Diamond Navette Shaped Ring
    Art Deco 18ct Gold & Platinum, Sapphire & Diamond Navette Shaped RingAU$4,550
  17. Art Deco French Platinum, Frosted Rock Crystal & Diamond Ring
    Art Deco French Platinum, Frosted Rock Crystal & Diamond RingAU$12,600
  18. Art Deco Platinum Brooch set with Sapphires & Diamonds in Original Case
    Art Deco Platinum Brooch set with Sapphires & Diamonds in Original CaseAU$13,600
  19. Art Nouveau Platinum & 15ct Gold, Diamond Pendant Brooch
    Art Nouveau Platinum & 15ct Gold, Diamond Pendant BroochAU$13,600
  20. Art Deco Platinum & Iridium Buckle Ring set with Sapphires & Diamonds
    Art Deco Platinum & Iridium Buckle Ring set with Sapphires & DiamondsAU$13,600
  21. Early 20th Century 18ct Gold, Cats Eye Chrysoberyl & Diamond Cluster Earrings
    Early 20th Century 18ct Gold, Cats Eye Chrysoberyl & Diamond Cluster EarringsAU$9,950
  22. Art Deco Platinum Diamond Shaped Emerald & Diamond Ring
    Art Deco Platinum Diamond Shaped Emerald & Diamond RingAU$8,550
  23. Art Deco Platinum Pierced Rectangular Shaped Ring set with Diamonds
    Art Deco Platinum Pierced Rectangular Shaped Ring set with DiamondsAU$6,550
  24. Art Deco 18ct Gold, Platinum, Emerald & Diamond Rectangular Cluster Ring
    Art Deco 18ct Gold, Platinum, Emerald & Diamond Rectangular Cluster RingAU$5,950
  25. Early 20th Century 15ct Gold & Platinum Aquamarine & Diamond Drop Pendant on Platinum Chain
    Early 20th Century 15ct Gold & Platinum Aquamarine & Diamond Drop Pendant on Platinum ChainAU$7,050
  26. Edwardian Platinum, Pink Sapphire & Diamond Cluster Ring
    Edwardian Platinum, Pink Sapphire & Diamond Cluster RingAU$6,550
  27. Early 20th Century Platinum Bracelet set with Diamonds
    Early 20th Century Platinum Bracelet set with DiamondsAU$17,600
  28. Art Deco Platinum & 15ct Gold & Platinum Tie Pin set with a Fancy Yellow Diamond with a Diamond on Either Side
    Art Deco Platinum & 15ct Gold & Platinum Tie Pin set with a Fancy Yellow Diamond with a Diamond on Either SideAU$3,800
  29. Early 20th Century Platinum, Diamond Daisy Cluster Ring with Outer Ring of Diamonds
    Early 20th Century Platinum, Diamond Daisy Cluster Ring with Outer Ring of DiamondsAU$9,350
  30. Art Deco 18ct White Gold & Platinum, Sapphire & Diamond Rectangular Ring
    Art Deco 18ct White Gold & Platinum, Sapphire & Diamond Rectangular RingAU$8,550
  31. Early 20th Century 18ct Gold & Platinum Square Ring set with Diamonds
    Early 20th Century 18ct Gold & Platinum Square Ring set with DiamondsAU$8,550
  32. Art Deco Platinum Diamond Solitaire Ring with Baguette Diamond Shoulders
    Art Deco Platinum Diamond Solitaire Ring with Baguette Diamond ShouldersAU$33,200
  33. Edwardian 18ct Gold & Platinum Three Stone Diamond Crossover Ring
    Edwardian 18ct Gold & Platinum Three Stone Diamond Crossover RingAU$5,750
  34. Edwardian Platinum, Aquamarine & Diamond Pendant on a Platinum Chain
    Edwardian Platinum, Aquamarine & Diamond Pendant on a Platinum ChainAU$17,600
  35. Art Deco 18ct Gold & Platinum, Onyx & Diamond Hexagonal Shaped Ring
    Art Deco 18ct Gold & Platinum, Onyx & Diamond Hexagonal Shaped RingAU$5,750
  36. Art Deco Platinum & Diamond Bracelet
    Art Deco Platinum & Diamond BraceletOn Hold