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Vintage Platinum 13.75 CT Star Sapphire and Diamond Ring

Item Details

Materials: Platinum
Ring Size: 6.75
Hallmarks: PLATINUM
Total Weight: 13.00 grams
Primary Stone Type: Sapphire
Primary Stone Shape: Oval Cabochon
Primary Stone Count: 1
Primary Stone Dimensions: (15.00) mm x (12.00) mm x 7.09 mm – (estimate)
Total Primary Stone Carat Weight: 13.75 ct
Primary Stone Gemologist Note: Star sapphire has weak asterism
Secondary Stone Type: Diamond
Secondary Stone Shape: Single Cut, Old European Cut
Secondary Stone Count: 4
Secondary Stone Dimensions: 1.80 mm – 3.10 mm
Total Secondary Stone Carat Weight: 0.27 ctw
Secondary Stone Color Grade: G – H
Secondary Stone Clarity Grade: VS2 – SI1
  • 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. Industry standard and accepted treatments for gemstones are assumed unless otherwise noted.
  • Pre-owned jewelry may contain minor markings/imperfections throughout.


- chips and abrasions to star sapphire.
- larger diamonds are chipped.

Item #


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