Stamp: Sterling ->U<-
Gemstone: Chrysoprase and Marcasite
Shape/Cut: Cabochon
Color: Green, silver
Gemstone size: 14mm x 12mm
Ring size: 3.75
Condition: Antique condition with signs of wear. A few lone marcasite have lost their way and have traveled off somewhere, leaving behind their little divets of where they once were. The stone itself is overall in good condition but has a few edge nicks as you can see.
Tested with Official Presidium II Gem Tester for Accuracy
*Please see photos for more details.