Spiral stud earrings with large blue Agate bead

Spiral stud earrings with large blue Agate bead.
The  spiral is all around us - from the milky way until the sea shells, it is one of the basic shapes in nature. 
The earrings are precised handmade and are great for any outfit.  
18 kt goldplated brass. Nickel free.
1.5 cm wide , 3 mm thick