Mauve (common colour name): Purple (Hue) In the diamond trade, the name mauve can be applied to pure purple (PP) or pinkish purple (pk-PP) or pink-purple (PK-PP) hues that exhibit pale tones. If the purple is tinged with gray or brown, it is often referred to as “mauve dust” or dusty mauve. Occasionally the name mauve is used by gemologists to denote violet-blue fluorescence.