Two Vintage Gem-Set Rings

one in a dome motif set to the center with an old cut diamond melee and cluster of round cut rubies, with blue enamel ground and scrolled gilt highlights within a surround set with full cut round diamonds weighing approximately .48 total carat (H-I color, SI1-I1 clarity), with faint stamp for 750 and testing 18KT (20mm; ring size 8.25) (with some loss of gilt highlights; with some chips and loss to enamel; some diamonds with chips); and one with a black onyx ground centering on a gold star motif set with cultured pearls, with engraved and enamel highlights to shank, stamped 14K (19mm; ring size 5) (some abrading to onyx).
10.2 total dwt.
From the Estate of Martha Melvin, Winston-Salem, North Carolina
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