I have this Vintage Sterling Silver Art Deco Carnelian Marcasites Ring here for your contemplation.
This is a large and imposing rings of rich Sterling Silver, in a fabulous Art Deco design, filled with sparkling marcasites and an outstanding oval Carnelian center. No marcasites are missing which is rare in itself. "925"is marked on the inside.
Measurements: ring size 5 1/2 / 16.5 mm