Silver Alexandrite Earrings Studs, Petite Rosebud: Sweet and small, these little rose studs are appx 6.5mm around, and stand up from the ear by about 5mm. They are set with a small round Lab Created Alexandrite in each rose, tucked down low into the petals. The stones measures 3mm each. Assembled with a simple silver post and nut assembly, these studs are handmade in our store.