All the beautiful reds that are Rosarita!
 
Rosarita is gold slag from the gold refining process of the 1960's & 70's. In the 1980's they changed the process, so it doesn't produce this gorgeous red glass anymore.
 
Set in a twisted wire bezel and set on a filigree band.
 
Band Width: 6mm.
Setting Size: 21 x 10mm.
 
Size: UK R.   USA 9.