it still gets me every time. thanks, tolya. work with me, here. it still gets me every time. to see the sad ruin of the great ship sitting here, where she landed at 2:30 in the morning, april 15, 1912, after her long fall from the world above. dive nine. here we are again on the deck of titanic. two and a half miles down. the pressure is three tons per square inch, enough to crush us like a freight train going over an ant if our hull fails. these windows are nine inches thick and if they go, it's sayonara in two microseconds. right. let's go to work. stay off the floor. don't stir it up like you did yesterday. okay, i want to see what's under that wardrobe door. easy, lewis. take it slow. oh baby baby baby. you are, lewis. well, here it is, the moment of truth. here's where we find out if the time, the sweat, the money spent to charter this ship and these subs, to come out here to the middle of the north atlantic. were worth it. if what we think is in that same. is in that safe. it will be. shit. you send out what i tell you when i tell you. i'm signing your paychecks, not 60 minutes. now get set up for the uplink. how it's going? it's going like a first date in prison, whattaya think?! hi, dave? barry? look, it wasn't in the safe. no, look, don't worry about it, there're still plenty of places it could be. in the floor debris in the suite, in the mother's room, in the purser's safe on c deck. i'll be god damned. yes, hi, tracy. you know, titanic is not just a shipwrick, titanic is the shipwreck. it's the mount everest of shipwrecks. i've planned this expedition for three years, and we're out here recovering some amazing things. things that will have enormous historical and educational value. i'd rather show you than tell you, and we think we're very close to doing just that. nobody called the recovery of the artifacts from king tut's tomb grave robbing. i have museum-trained experts here, making sure this stuff is preserved and catalogued properly. look at this drawing, which was found today. a piece of paper that's been underwater for 84 years. and my team are able to preserve it intanct. should this have remained unseen at the bottom of the ocean for eternity, when we can see it and enjoy it now? bobby, we're launching. see these submersibles here, going in the water? take a message. this is brock lovett. what can i do for you, mrs. ? mrs. calvert? a hundred and one next month. and everyobody who knows about the diamond is supposed to be dead. or on this ship. but she knows about it. and i want to hear what she has to say. got it? is your stateroom alright? would you like anything? louis the sixteenth wore a fabulous stone, called the blue diamond of the crown, which disappeared in 1792, about the time louis lost everything from the neck up. the theory goes that the crown diamond was chopped too. recut into a heart-like shape. and it became le coeur de la mer. the heart of the ocean. today it would be worth more than the hope diamond. i tracked it down through insurance records. and old claim that was settled under terms of absolute secrecy. do you know who the claiment was, rost? nathan hockley, right. pittsburgh steel tycoon. for a diamond necklace his son caledon hockley bought in france for his fiancee. you. a week before he sailed on titanic. and the claim was filed right after the sinking. so the diamond had to've gone down with the ship. if your grandma is who she says she is, she was wearing the diamond the day titanic sank. deal. are you ready to go back to titanic? rose might not want to see this, lewis. will you share it with us? tell us, rose. just tell us what you can-- well, that's the general idea, my dear. rose, tell us more about the diamond. what did hockley do with it after that? wait! can you give us something go on, here. like who had access to the safe. what about this lovejoy guy? the valet. did he have the combination? maybe she wants to make peace with the past. then we're all meeting your grandmother for the first time. oh, yeah. yeah, i'm a believer. she was there. we were pissin' in the wind the whole time. oh shit. you had it the entire time?! don't drop it rose. just let me hold it in my hand, rose. please. just once. my god. would you like to dance?