Earring Back: Friction Setting: Prong Shape: Round Stone Cut: Round Stone Millimeter Measurement: 6 Mm Width, 6 Mm Length Metal Color: Two Tone Earring Length: 18mm Earring Width: 12mm Care: Wipe Clean Stone Type: 8 Lab Created Sapphire, 2 Genuine Onyx Authenticity: Genuine Stone Earrings Type: Post Earrings Earrings Style: Drop Earrings Metal: 10k Gold, Sterling Silver 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.