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Vintage Platinum 0.72 CTW Diamond Knife-Edge Ring

Item Details

Style: Vintage
Materials: Platinum
Ring Size: 8.00
Hallmarks: M3 10% IRID PLAT
Total Weight (grams): 3.10 grams
Primary Stone Type: Diamond
Primary Stone Shape: Old European Cut
Primary Stone Count: 1
Primary Stone Dimensions: 5.20 mm – 5.50 mm x 3.20 mm – approximate
Total Primary Stone Carat Weight: 0.56 ctw
Primary Stone Color Grade: G
Primary Stone Clarity Grade: I1 – I2
Secondary Stone Type: Diamond
Secondary Stone Shape: Single Cut
Secondary Stone Count: 4
Secondary Stone Dimensions: 1.50 mm
Total Secondary Stone Carat Weight: 0.06 ctw
Secondary Stone Color Grade: H – I
Secondary Stone Clarity Grade: SI1 – SI2
  • This item has been evaluated and verified by a GIA Graduate Gemologist.
  • All diamond and gemstone grading is done under GIA standards as the mounting permits, where gemstones are present; where mountings impede accurate measurements, (estimated) dimensions are provided. All weights and measurements are estimated and approximate. Treatments for jadeite and other gemstones are assumed unless otherwise noted.
  • Pre-owned jewelry may contain minor markings/imperfections throughout.
  • While we represent items accurately on our site to the best of our ability, the color calibration of computer monitors can vary, causing colors to appear slightly different from one monitor to another. Due to this, please note that precise color representation of metal and gemstones is not always possible.


- total diamond weight is 0.72 ctw.
- out of round.
- center diamond is badly chipped.
- side diamonds are chipped and abraded.

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