These pearls are simply stunning. They are beautifully chunky, irregularly shaped and the pearls themselves are around 10mm long (just under half an inch)
Edison pearls are much larger than other freshwater pearls and often show a beautiful, almost metallic lustre as you can see here. 
These are superb, showy pearls and I have finished them with a simple sterling silver bead and handmade sterling silver fittings.
The total length of these earrings including the ear hook is around 1.5" and they come with a lovely little gift box.