Earring Back: Friction Setting: Prong Shape: Round Stone Cut: Round Stone Millimeter Measurement: 5 Mm Width, 5 Mm Length Metal Color: Two Tone Earring Length: 11.5mm Earring Width: 11.5mm Care: Wipe Clean Stone Type: 32 Lab Created Sapphire, 2 Genuine Onyx Authenticity: Genuine Stone Earrings Type: Post Earrings Earrings Style: Stud Earrings Metal: Sterling Silver, 10k Gold Country of Origin: Imported Gemstones may be treated and may require special care. Metal may be rhodium plated to enhance appearance and reduce tarnishing. Photos are enlarged to show detail.