Prothalotia pulcherrima, common name the beautiful jewel top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

The elongated, thick and solid shell is imperforate and has an acutely conical shape.

The penultimate has four or five broad flat spiral ribs, often unequal in width, separated by narrow impressed grooves.

The subangular body whorl has four or five broad fiat low ribs above the periphery and more numerous narrower ones on the base.

The peristome is edged with a line of intense crimson, bordered with greenish inside.