Rieve's lightsaber was a lightsaber with a red blade. Rieve, a Force-sensitive Hunter, used it when she battled in the Grand Arena. To help Rieve embody the Sith Lord persona for her role as a Hunter, Balada the Hutt, who organized the Hunters of the Outer Rim, gifted the lightsaber to her from her personal collection.
Speculation regarding the lightsaber's beginnings was common gossip within the Arena.