A card with four shiny coins stacked in a neat pile, utilizing a teal or green c

A card with four shiny coins stacked in a neat pile, utilizing a teal or green color scheme. The design should evoke a sense of growing wealth, with more intricate details than the lower denomination cards. Overlay text should display '4M' in a bold, elegant font. The border should have a touch of gold or silver to signify its increased value."