This is a modern engraved stone cabochon, not an antique cameo.

What it is
    •    A polished oval stone (likely green jasper / serpentine or similar)
    •    Laser-engraved or mechanically engraved image of a leopard (chatgpt://generic-entity?number=0)
    •    Flat back, domed front → typical cabochon form used in jewellery making

How we can tell it’s modern
    •    The engraving is uniform and shallow, consistent with laser or rotary engraving
    •    No metal mount, pin, or bezel wear
    •    Stone thickness and polish match contemporary craft cabochons
    •    Wildlife portrait style (high-detail realism) is modern rather than classical cameo style

What it was meant for
    •    Setting into a ring, pendant, belt buckle, or inlay
    •    Sometimes sold loose for custom jewellery or souvenir pieces
    •    Popular in African wildlife–themed jewellery