Products manufactured by Nojiri Optical Industry Co., Ltd. Brand/Manufacturer: Nojiri Optical Industry Co., Ltd. Material: Based on the "TITAN-P" engraving, it is believed to be made of titanium. Design: These are vintage-style frames with gold-colored rims and temples (arms), featuring decorations resembling red gemstones (the warranty card states natural gemstones, 0.027 carats) on the temples. High-end eyeglasses frames using natural gemstones. - Decoration (Base): Diamond 0.027 ct 4/pcs - Decoration (Base): Ruby 0.8 ct 6/pcs Thank you for viewing.