Small hoop about half inch of earring to show. 

two stones set horizontally are about 1/3 inches.

Nice green. 

I do not know what these are. 

They look like a simulated emerald. 

Medium green.

I do not see any hallmarks denoting gold content. 

But they are a good color and look genuine but I believe these to be plated or costume. 

Thanks. 

Earlene