The Antique Jewellery Company
Latest Finds Most Popular Expert Picks The Archive Sale Eras Collections
Contact Book A Consultation Join VIP
Wishlist Sign In
The Antique Jewellery Company Tray 0
Book Your Appointment
Free Shipping across Australia
The Antique Jewellery Company Experts since 1975Read Our Story
The Antique Jewellery Company

Platinum & Diamond Jewellery

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

  1. Platinum, Diamond Cluster Earrings
    Platinum, Diamond Cluster EarringsAU$8,550
  2. Art Deco Platinum Rectangular Ring set with an Emerald & Diamonds
    Art Deco Platinum Rectangular Ring set with an Emerald & DiamondsAU$19,600
  3. French Art Deco Platinum, Onyx & Diamond Oval Ring
    French Art Deco Platinum, Onyx & Diamond Oval RingAU$13,600
  4. Edwardian 18ct White Gold Diamond Cross Pendant in Original Case
    Edwardian 18ct White Gold Diamond Cross Pendant in Original CaseAU$13,600
  5. Edwardian Platinum, Diamond Cluster Ring with 1.25 Carat Old Mine Cut Diamond
    Edwardian Platinum, Diamond Cluster Ring with 1.25 Carat Old Mine Cut DiamondAU$25,150
  6. Art Deco Platinum & Diamond Articulated Bracelet
    Art Deco Platinum & Diamond Articulated BraceletAU$45,250
  7. French Early 20th Century 18ct Gold & Platinum Grasshopper Brooch set with Green Garnets & Rose Diamonds & an Emerald
    French Early 20th Century 18ct Gold & Platinum Grasshopper Brooch set with Green Garnets & Rose Diamonds & an EmeraldAU$25,150
  8. Early 20th Century Platinum Large Sapphire & Diamond Cluster Ring
    Early 20th Century Platinum Large Sapphire & Diamond Cluster RingAU$13,600
  9. Art Deco Platinum Ring set with a Large Yellow Zircon with Diamond Set Shoulders
    Art Deco Platinum Ring set with a Large Yellow Zircon with Diamond Set ShouldersAU$13,600
  10. Art Deco Platinum, Three Stone Emerald & Diamond Cluster Ring
    Art Deco Platinum, Three Stone Emerald & Diamond Cluster RingAU$19,600
  11. Art Deco Platinum, Sapphire & Diamond Square Ring with Diamond set Shoulders
    Art Deco Platinum, Sapphire & Diamond Square Ring with Diamond set ShouldersAU$5,750
  12. Early 20th Century 18ct White Gold & Platinum, Three Stone Diamond Ring
    Early 20th Century 18ct White Gold & Platinum, Three Stone Diamond RingAU$5,350
  13. Edwardian 18ct Gold, Natural Pearl & Diamond Cluster Ring
    Edwardian 18ct Gold, Natural Pearl & Diamond Cluster RingAU$5,950
  14. Art Deco Platinum Ring set with a Cabochon Sapphire & Diamonds
    Art Deco Platinum Ring set with a Cabochon Sapphire & DiamondsAU$19,600
  15. 18ct Gold & Platinum Three Stone Diamond Ring
    18ct Gold & Platinum Three Stone Diamond RingAU$7,350
  16. Art Deco Platinum Eternity Ring set with Diamonds
    Art Deco Platinum Eternity Ring set with DiamondsAU$3,350
  17. Mid 20th Century 18ct White Gold & Platinum, Sapphire & Diamond Three Stone Ring
    Mid 20th Century 18ct White Gold & Platinum, Sapphire & Diamond Three Stone RingAU$10,600
  18. Art Deco Platinum Two Carat Diamond Solitaire Ring with Baguette Diamond Shoulders
    Art Deco Platinum Two Carat Diamond Solitaire Ring with Baguette Diamond ShouldersAU$37,200
  19. Art Deco Platinum, Emerald & Baguette Diamond Tie Pin
    Art Deco Platinum, Emerald & Baguette Diamond Tie PinAU$2,600
  20. Early 20th Century 18ct Gold & Platinum, Square Ring set with a Sapphire & Diamonds
    Early 20th Century 18ct Gold & Platinum, Square Ring set with a Sapphire & DiamondsAU$4,550
  21. Early 20th Century Platinum & Diamond Ring with Maltese Cross Motif
    Early 20th Century Platinum & Diamond Ring with Maltese Cross MotifAU$13,600
  22. Art Deco Platinum, Fire Opal & Diamond Ring
    Art Deco Platinum, Fire Opal & Diamond RingAU$13,600
  23. Edwardian 18ct Gold & Platinum Figure of Eight Ring set with Diamonds
    Edwardian 18ct Gold & Platinum Figure of Eight Ring set with DiamondsAU$9,350
  24. Edwardian 18ct Gold & Platinum Three Stone Sapphire & Diamond Ring
    Edwardian 18ct Gold & Platinum Three Stone Sapphire & Diamond RingAU$5,950
  25. French Belle Epoque Platinum, Diamond Two Line Bracelet with Diamonds In Between
    French Belle Epoque Platinum, Diamond Two Line Bracelet with Diamonds In BetweenAU$25,150
  26. Early 20th Century Platinum Cluster Ring set with an Alexandrite & Diamonds
    Early 20th Century Platinum Cluster Ring set with an Alexandrite & DiamondsOn Hold
  27. Edwardian 18ct White Gold & Platinum Crossover Ring set with Diamonds
    Edwardian 18ct White Gold & Platinum Crossover Ring set with DiamondsAU$3,950
  28. Art Deco 18ct White Gold & Platinum, Large Sapphire & Diamond Plaque Ring
    Art Deco 18ct White Gold & Platinum, Large Sapphire & Diamond Plaque RingAU$13,600
  29. Art Deco Platinum Ring set with a Marquise Cut Sapphire & Diamonds
    Art Deco Platinum Ring set with a Marquise Cut Sapphire & DiamondsAU$4,550
  30. Art Deco 18ct Gold & Platinum Square Ring set with an Aquamarine & Diamonds
    Art Deco 18ct Gold & Platinum Square Ring set with an Aquamarine & DiamondsAU$7,350
  31. Edwardian 15ct Gold & Platinum Bow & Heart Shaped Pendant set with Aquamarines, Natural Pearls & Diamonds on a Platinum Chain
    Edwardian 15ct Gold & Platinum Bow & Heart Shaped Pendant set with Aquamarines, Natural Pearls & Diamonds on a Platinum ChainAU$7,350
  32. Art Deco Platinum Pierced Bombè Cluster Ring set with a Pale Yellow Diamond & Rose Diamonds
    Art Deco Platinum Pierced Bombè Cluster Ring set with a Pale Yellow Diamond & Rose DiamondsAU$5,750
  33. Art Deco Platinum Rectangular Ring set with Two Sapphires & Diamonds
    Art Deco Platinum Rectangular Ring set with Two Sapphires & DiamondsAU$6,550
  34. Edwardian 18ct Gold & Platinum, Ruby Solitaire Ring with Diamond set Shoulders
    Edwardian 18ct Gold & Platinum, Ruby Solitaire Ring with Diamond set ShouldersAU$7,350
  35. Early 20th Century French 18ct Gold & Platinum Two Stone Diamond Crossover Ring
    Early 20th Century French 18ct Gold & Platinum Two Stone Diamond Crossover RingAU$5,950
  36. Early 20th Century Platinum Diamond Drop Earrings
    Early 20th Century Platinum Diamond Drop EarringsAU$13,600