This is a great looking ring!
Modelled as three intertwining snakes in a really rich yellow gold that really looks good for 9 carat, their heads set with emeralds  and with diamond eyes all in closed back settings.
 
emeralds are approx 2.5mm diameter
diamonds are approx 1.5mm diameter 
 
face measures 16mm north/south
 
hallmarks - none. Tests as 9 carat
weighs - 7.3g
size - 11.75  but has been sized up a lot so can come back down again!
English circa - 1880 -90
Good antique condition
 
Perfect for a man