Part of the Guerlain summer collection was the addition of 4 single shadows which will be permanent. I bought two shades, both £19 each.
L’Instant d’Un Reve is a slightly shimmery cool toned brown/taupe.
L’Instant d’Une Emotion is a dark slightly shimmery green charcoal.
Although both are pigmented and last really well, I did find them slightly difficult to blend in the crease compared to my other brands. I’m mostly using them as lids shades so this isn’t a problem for me but thought it worth mentioning. Blending aside, L’lnstant d’une Émotion is a really beautiful rich complex shade.
The other two shades I didn't get are L’Instant D’un Baiser, sheer frosty white peach and L’Instant D’Un Caresse, this looked better in the pan, when I swatched it I only got very sheer silver shimmer.