Shell subglobose, 14.6-15.5 mm in height, 19.4-20.8 mm in width. Spire elevated. Aperture roundly ovate, 9.3-10.4 mm in height, 12.5-13.8 mm in width. Total number of whorls 5.25-5.40. Last teleoconch whorl rounded, with slight angulation; 11.8-13.0 mm in height. Teleoconch sculpture of small dense pustules and fine to moderately developed growth lines. Teleoconch periostracal sculpture of weak parallel periostracal ridges. Protoconch sculpture pustulose. Shell pale yellow to tan, with red umbilical patch and narrow red subsutural band, supraperipheral band absent. Inner lip white, reflected and obscuring umbilical depression. Outer lip moderately deflected below midline of last whorl. Umbilicus closed. Dimensions of syntypes: SH—14.6-15.5 mm, SW—19.4-20.8 mm, AH—9.3-10.4 mm, AW—12.5-13.8 mm, BW—11.8-13.0 mm, TW—5.25-5.40 whorls.

Darling Downs, southern Queensland
Ponderconcha gilberti is currently only known from the type locality, which is a large and diverse area of southern Queensland. The living animal remains unknown. While there are a number of populations presently known in the granite country of southern Queensland, additional surveys and detailed anatomical and genetic studies will be required to determine their identity and relationships.