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A super, original platinum and 18ct white gold sapphire and diamond ring from the Art Deco period, circa 1925. With a typical geometric design redolent of this era the bright diamonds used are a combination of various cuts. With an estimated total diamond carat weight of 1.00ct, using Old Mine cut and Old European cut stones they are millegrain set into this plaque design. Both deep blue sapphires are also faceted cut totalling 0.40ct. The shank of the ring is 18ct gold and the head is platinum. A lovely example of an original 1920's ring.


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RING SIZE - US 9 / UK S / EU 59 


MEASUREMENT – Diameter 21mm
Head of the ring 20mm H x 14mm W 




CARAT WEIGHT – 1.00ct total (centre stone 0.20ct, 5x0.10ct, 9x0.04/05cts)

CUT – Old Mine/Old European 


MATERIALS – 18ct Gold/ Platinum/Diamond/Sapphire 


WEIGHT – 3.9 g 


HALLMARK – None Stamped with '18ct & Plat' and tested with a touchstone and tested as such 


CONDITION - Overall very good condition for the age of the ring. The shank is strong showing little wear. There are minor scratches as would be expected from a ring of this vintage. The stones are securely set. 

Art Deco Platinum and 18ct Gold Sapphire and Diamond Plaque Ring, Circa 1925

  • 21mm Diameter
    Resizing available upon request, here.



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