These are gorgeous bright blue One of a Kind K2 mountain Jasper. ( yes, this stone is found in the famous K2 mountain K2 is the second highest mountain in the world. It is in the Karakoram section of the Himalayas between Pakistan and China.)  

These are sliced polished cabachons combined with round moonstone wired with 14k gold filled wire and on a 14k gold filled leverback earwire. The size is about 1 7/8" including the earwire. 

Your earrings will arrive beautifully giftboxed.