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Antique Engagement Ring: Old Mine Cut Diamond, Platinum Filigree

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Gorgeous antique platinum ring from the Roaring 20s!

Metal(s) Used: Platinum
Hallmarks: PLATINUM
Weight (total): 3.2g
Rise: 5.54mm
Band(s): 8.33mm to 1.54mm
Ring Size (approx): 7.5
Resizable? Yes, within reason
Setting Condition: Very Good. Light normal wear for a ring of its age and type, prongs have been re-tipped in white gold.

Stone: Diamond (tested)
Shape: Round Old Mine Cut
Diameter: 4.47mm
Estimated Carat Weight: .33
Estimated Clarity: SI1 or better! (I saw no inclusions under the loupe, but I don't grade diamonds myself above SI1)
Estimated Color: I
Main Stone Condition: Excellent, no damage or wear

Time Period: Late 19 teens to early 1920s.
Country of Origin: USA
Purpose: Engagement Solitaire

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Antique Engagement Ring: Old Mine Cut Diamond, Platinum Filigree


  • Vintage item from the 1920s
  • Materials: Platinum, Diamond
  • Only ships within United States.
  • Feedback: 285 reviews
  • Favorited by: 147 people