Student shade sizes are the shade holder sizes the actual outside glass opening is approximately 1/4" less to allow clearance when the shade is on the holder . A ten inch student shade will measure a 9 3/4 outside glass diameter.
Student lamp shades are unusually seven" diameter shades originally used on desk lamps. The term is now used to describe hurricane shaped glass of all sizes. The smallest being 4", this size lends itself to a the decorative and collector market.
Eight" student shades are more rare originating abroad. These brass fixtures have stood the test of time and are still available in limited colors and patters.
By far the most popular size has a bottom 10" diameter. Available i for many interest. The most popular of these shades are turn of the century hand painted beauties in soft floral and warm Victorian colors. In keeping with the theme of nature rarer birds and animal motifs are sometime seen.