Unsigned unmarked yet tested bright red, may be higher than sterling silver and could be an Arts Crafts, Art Deco or Modernist Studio Ring with 3/4" bezel set Carnelian looking cab at size 6 3/4 yet your jeweler could resize.
Top is 1 1/8 X 7/8 and is unpolished.
There is some silver that was never 'cleaned up'.
In good sound preowned vintage wearable condition.
$9 USPS Priority/Ins/Track or Free with your USA Ck or USPS MO.
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