The Gem Cutting Scam is a scam which has been around pretty much as long as RuneScape has, but the problem with it is that it may not be a scam, as the player may be honestly trying to level up their Crafting skill. The scam is much harder now because there is the assist system to do the job. Also players can (and should) sell their uncut gems on the GE and buy cut ones for less.