Handmade jewels from Chicago Art, America, over 50 years ago. Chicago Art jewels have a beautiful, moderate color unevenness, and when used as accents in lamps and panels, as well as in dragonfly Tiffany lamps, they create very wonderful works. Chicago Art Jewel JDF1-Orange Jewel diameter: 12mm 16 pieces For 16-inch dragonfly Tiffany lamp 14 pieces are used for a 16-inch Tiffany lamp. 2 pieces are spares. Glass burrs remain around the jewels, so please use a router or similar tool to remove them. #Aguri's Stained Glass Materials List