The earrings measure approx. (5/8") 17mm north to south (1/2") 13mm east to west. The Amethyst measures approx. 10mm by 10mm. 

They are fully hallmarked, have been tested, and verified weighing in at 8.3 grams. There are no problems. This item is pre-owned and there will be ordinary and normal use marks. Comes from a clean, smoke-free home.