Who says getting a bit of coal is a bad thing? Two deep circles of black onyx are set in a notched bezel setting to create these classy earrings. The silver is left it's natural color to provide contrast against the darkness of the onyx. These onyx are 6 mm across, making the earrings approx. 7 mm, or almost exactly .25 of an inch. The setting, post and clutch are all sterling silver with 925 stamped on the post. These earrings are available in a bright or semi-matte finish. The semi-matte finish is pictured here. Please see my other listings for post earrings with peach moonstones or carnelians. Your bit of coal will be shipped gift-wrapped. Please see my profile and store policies pages for more information about myself and my jewelry.