There’s a shine but it’s more of a gloss, not a shimmer. What I meant by flat is just comparing the colors between SO and gmop. Just imagine painting your nails a dark silver/steel color with a clear top coat on top..whereas the gmop, there’s movement and the color changes when you move it slightly.That’s so sad! I really expected shimmer since it’s called silver… From what I googled there are some stunning shiny versions. It would be very upsetting if it were a flat stone with no shine.