The soft lavender shade on this 10 1/2" high vase is from ageing. In the mid and later 1800's, virtually all American glass companies used Manganese in their glass formulas. Around 1915, they discontinued using Manganese (it was needed in WWI for military flares and munitions) and Selenium became the chemical agent used to clarify and stabilize. It was then that an observation was made that clear glass no longer turned lavender from age. I have had this vase a very long time and it has always been lavender. The base is 3 1/4" across, with a star burst pattern, and has several small chips from loving use. This is a lovely object for art, and could hold some flowers if desired. I will combine orders for discount and shipping savings, and have many lovely vases listed here in my shop. Please email me with any questions you may have, and thank-you for shopping here at Something Wonderful.