Photos of the diamonds?
Caves are usually dissolved limestone pockets. I'm no geology expert but that doesn't seem like the right place for diamond discovery. I'd think high granite or iron areas.
paper work on diamonds?? weight,color whatnot?
But what about the TREASURE???!!!
Bringing it back to life,
First let me suggest some Holy Water for your journey
Chem Lights, you don't need no fancy reflector device thingy, just watch how you open the wrapper and split long ways and it will shield the light from your eyes if held right. Of course RED is for emergencies so remember that and bring a few. Use 550 cord to tie them/wear around your neck etc.. in the event you fall down a cliff the chem light is by you and not down another cliff where rescuers will look.
Had a squad leader who jumped into Panama with the 75th who said that a gunner broke his leg on landing and the medic ran up assessed him and dropped a chem light by him so he could find a way back to him; but he put the chem light about 5 feet away so the gunner had to crawl to the light and lay on top of it so the glow would not attract enemy fire.
Remember when encountering things like a bear, big foot, large four legged treasure protecting ass raping woolly mammoth eating trivia asking monsters to make yourself appear bigger than you are.
http://www.youtube.com/watch?v=q-uzm1QQkao&feature=related
Sorry guys this is a must read thread though