This is a brand new purchase which has become a firm favourite. MUA's Amaretto Crush is an absolutely gorgeous pink that is not too bright and in your face, but still extremely summery and pretty. It's been on my nails for four days now and has only worn off slightly at the tips. With a decent top coat you should be able to extend the wear even longer.
And just look how dinky the bottle is! (As a somewhat dinky person, I occasionally get over excited about similarly petite products. You should see me in the travel toiletries section of Boots)