Lethal Cosmetics Nebula is a cool duochrome with a metallic finish that is permanent and retails for $16.50. In comparison, Clionadh Trefoil Lite is a cool duochrome with a metallic finish that is permanent and retails for $19.00.
Clionadh Trefoil Lite is 85% similar — it is more shimmery, lighter, cooler.