L’Oreal The True Diamond Nail Lacquer ($5.99 for 0.39 fl. oz.) is a clear base with a lot of fine silvery-white shimmer and sparkle. It’s designed to be used as a top coat, and one coat has great coverage for a top coat–you’ll get plenty of shimmer across the nail. I used one coat over Matte-r of Fact, and a second would have been totally unnecessary. I used two coats of it alone on my thumb nail, just so you could see what the top coat looked like on its own. The top coat extended the wear of Matte-r of Fact by two days before there was noticeable chipping. I generally have no problems with chipping when I’ve used L’Oreal’s Colour Riche formula–it wears well and long for me (week)–and would expect this to be just fine over more normally-wearing polishes. I don’t personally have anything similar to this, so I didn’t have any dupes in mind.