Pair of Reticulated Sterling Silver Open Hoop Earrings.  
The unique texture of these hoops really makes them stand apart.  Each pair is unique as the texture is created through reticulation of the sterling silver (repeated heating and cooling producing a one off molten lava type texture) and the results are never identical.
These hoops are approximately 24mm (about an inch) in diameter and weigh 3.1g each.
They are hallmarked by the London Assay Office, including my own maker's mark.