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A fantastic early 20th Century platinum GIA certified 4.44ct Old Mine Brilliant Cut diamond solitaire ring, dating from circa 1910. Beautifully set in platinum with a traditional coronet under bezel and chenier shoulders this gorgeous antique diamond really sparkles!  A super engagement ring or life event ring to mark a special time. This is a ring for someone looking for a one of a kind diamond with history and character in comparison with the myriad of modern brilliant cut diamonds that are to be had.


This piece comes with a GIA certificate dated August 25, 2021 ref #5212976422.


Please feel free to contact us for more details on this piece, including additional images or video clips. 


RING SIZE – UK Q / US 8  / EU 56½
Complimentary sizing is available on this piece.


MEASUREMENT – 20mm diameter 


WEIGHT – 4.5g


MATERIALS – Platinum/Diamond




CARAT - 4.44ct

CUT - Oval Old Brilliant 


HALLMARK – Stamped 'PLAT' and tested as high grade platinum using a touchstone


CONDITION – This ring is in very good condition the diamond is unworn, the setting and shank are all in excellent condition. Considering the age of the ring it appears little worn at all. 

Early 20th Century Platinum GIA 4.44ct Old Brilliant Cut Diamond Solitaire Ring

  • Total diamond ring diameter 20mm


    Resizing available upon request, here.



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