This is the part of the shade that would sit on the lamp post. As more precisely indicated in that photo, the flat ring that sits on the post is about 2 1/8" wide, and the diameter of the center hole is just over 1-3/4". Depending on the light within and surrounding the lamp, the colors can be muted or vibrant.Truly a beautiful enhancement to any. The item "Vintage Tiffany-Style Stained Glass Torchiere Floor Lamp Shade Jewellery Mosaic" is in sale since Monday, September 3, 2018. This item is in the category "Collectibles\Lamps, Lighting\Shades". The seller is "alex7773alex" and is located in Camden, New Jersey. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.