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1930s Art Deco 18K Diamond and Black Onyx Filigree Ring

Item Details

Style: Vintage, Art Deco
Materials: 18K Gold
Ring Size: 2.75
Hallmarks: 18K &K
Total Weight (grams): 3.40
Primary Stone Type: Diamond
Primary Stone Shape: Circular Brilliant Cut
Primary Stone Count: 1
Primary Stone Dimensions: 2.60 mm
Total Primary Stone Carat Weight: 0.06 ct
Primary Stone Color Grade: H – I
Primary Stone Clarity Grade: I1 – I2
Secondary Stone Type: Black Onyx
Secondary Stone Shape: Cut Corner, Rectangle, Tablet
Secondary Stone Count: 1
Secondary Stone Dimensions: 20.00 mm x 8.05 mm
  • 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.
  • 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.


- the diamond has large chips and is loose.
- the black onyx is chipped and abraded.
- the ring is out of round, making the size approximate.
- some of the inlay top is missing.

Item #


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