Red topaz can be cut with a chisel by a player with 16 Crafting, although there is a high chance that the player will accidentally crush it. Successfully cutting a red topaz grants the player 25 Crafting experience, but if they crush the gem they will receive only 6.3 Crafting experience.
Cut red topaz may be sold to Gabooty's Tai Bwo Wannai Cooperative for 120 trading sticks, uncut may be sold for 24.
The gem is also used to create a Red topaz machete, which fulfils a medium Karamja Task. Uncut Red Topaz has in the past been considered to be a merch item, with prices reaching the 1-2,000gp range on two occasions in past years.