i alredy solved this puzzle in my first tribe.... but i kind of did it by accident, b/c i didnt purposely leave my fire burning for 60 hours...

i have a second tribe tho and ive tried to keep it burning for 60 hours but i dont remember wen i started this...i c sparks coming out of the fire and wen i drag someone onto the waterfall it says that they r putting out the fire, but i am not sure if tht means that the gem will def be there cuz i dont think its been 60 hours yet... im afraid to put it out and find no gem and hav to start over...

Does anyone kno wat i shood do? Will the gem be there if i put it out?