Earrings are 10K yellow gold screwbacks. They are dangle and have a top stone of black sapphire followed by two blue sapphires and the bottom is a black sapphire. These were purchased from an Austin, Tx. estate and were purchase in Thailand during the View Nam war when the husband was on R & R. The earrings measure 7/8" long and the condition is very good. The black sapphire are approx. 5mm and the blue sapphire are approx. 2 mm.