Glitter is thicker and costs a bit more. Glitter contains real crushed glass chips in random shapes and sizes. Glitter can be more brittle and tougher to cut and work with for some. Many love the glitter because it throws more light under stage lights. Sparkle is thinner and costs a bit less. Sparkle contains small, uniformed hex shaped chips. Sparkle is more flexible and easier to work with for some. Many love the sparkle because it give a more classic vintage look.