This is a  pair of Swarovski Elements aurora borealis earrings. 

I have made these earrings myself, using genuine Swarovski Elements crystals from the Swarovski company in Austria. The crystals are cut into a pear / tear-drop shape, and are beautifully faceted to catch the light and show all the rainbow of colours inside the crystals.

The wire inside and the ear hooks are sterling silver 925.

The crystals are 12 x 8 mm. The earrings are 3cm long, from the top of the hooks.