I have a pair myself, and purchased another for a friend's birthday. She loves them, too. Lovely details and craftsmanship, and so versatile. The packaging is also amazing and makes gift-giving a pleasure!
The earrings fall nice on the ear and the agates resemble rubies. They're a little larger than expected - about the size of a dime - hence, making the earrings look more expensive than they were and a lot prettier.