Silver Round Citrine Stud Earrings with Beaded HaloCitrine Stud Earrings These stud earrings are crafted from polished 925 sterling silver, each showcasing a central, round citrine gemstone measuring 3 mm. Known as the birthstone for November, the warm toned citrine is framed by a delicate halo of silver beading. The design is finished with Millgraine detailing, a traditional technique that adds a fine, textured border to the setting for a vintage inspired appearance.