Ignore the link this takes you to. Finally found the original instagram post. This color is... drum roll.... Kiko - 365 tattoo rose. It's, of course, not currently being sold. I've seen a lot of posts that say that Essi angora cardi is similar, but that color seems darker to me.
Shiny gel nails were so 2015! Just like makeup, the new trend brings matte nail polish which will intensify any color you choose. - See more at: http://www.quinceanera.com/make-up/spring-quinceanera-nail-trends/?utm_source=pinterest&utm_medium=social&utm_campaign=article-022616-make-up-spring-quinceanera-nail-trends#sthash.2Olfqim5.dpuf