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1930s 10K Shell Cameo, Black Onyx and Diamond Flip Ring

Item Details

Style: Vintage (1930s)
Material: 10K Gold
Ring Size: 6.75
Hallmarks: ESEMCO 10K
Total Weight (grams): 4.50
Additional Information: Center flips to be worn as a cameo ring or as a diamond and black onyx ring

Type: Shell
Shape: Cut Cornered Rectangular Cameo
Dimensions: (16.00) mm x (8.00) mm – (estimate)

Type: Black Onyx
Shape: Cut Cornered Rectangular Tablet
Dimensions: (15.50) mm x (7.50) mm – (estimate)

Type: Diamond
Shape: Rose Cut
Dimensions: 1.00 mm
Carat Weight: 0.01 ct
Color Grade: I – J
Clarity Grade: I1 – I2

  • 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.


- the shell and black onyx are chipped and abraded.
- the diamond is chipped.
- the stones are loose.

Item #


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