I made these by wire wrapping amethyst points onto silver plated chain. I attached a tiny white glass bead and then attached to silver earwires. 

The ones in the photo are approx. 2" long but you can choose between 1", 2", or 3". 

These can also be made in gold. 

*depending on the shape of the amethyst, some earrings may have a ball pin and some may have a wrap like shown in the picture. Each stone is uniquely different and I design around the shape of the stone.