Culet on a Gemstone
Culet From the Latin Culus Meaning Bottom
Culet correctly pronounced 'kyoo-lit' comes from the Latin 'culus' meaning bottom.
The culet is the facet at the bottom of a cut gemstone although not all faceted gemstones have one.
In some faceted gemstones the culet is closed which means the tip comes to a sharp point. Although a closed culet actually means there's no culet at all, many still refer to the pointed tip of a faceted gemstone as being the culet.