These are Howlite cabochon earrings. I have various colors and have different style post backs. They all do include a clutch back though.
The 13mm white almost heart shaped cabochons also have a 8mm round flat pad post back.
I have other shapes and sizes as well as different colors in Howlite. I always want people to know that Howlite is not turquoise. It is manmade "turquoise". It is made to appear like real turquoise but you can tell by the weight, feel, and temperature of a stone to test if it is real or not.
