Diamonds Uncut

published on July 13, 2020

They're going to let me touch it with myhandswatch carefully only time in my life I'mgoing to wash my hands in diamonds we'renow in the chief experts Department andthey have brought out some reallyspecial diamonds for us brought them out

From a vault somewhere and I'm amazed bythem this one here is the biggestdiamond that is here it is 240 caratsbut it's rather a shapeless lump butdown here there are some really amazingshapes I never realized that a diamond

When it's not even cut is a almostperfect octahedron it looks like out ofthe textbooks I just can't believe thatnature can make anything quite sobeautifulif you look down here you can see this

One here is a big yellow I think becauseof an impurity and then you can get somequite strong colors this one here ispurple and this one is pink these oneshere have grown into an almost perfectcube and this little one is really as

Far as I can see a perfect cube and thenthere's one that looks like a footballvery important World Cup was here inRussia last year though I don't playfootball myself and then there isanother one that looks like a skull and

If you turn it over its Hollow I thinkbecause it dissolved during thegeological deposition maybe in very hightemperature high pressure water that itdissolved but it's got a rather strangebowl shape with eyes might be a bit grim

Having a dam and shaped like a scowl onyour ringthese ones here I think perhaps are thechemically the most interesting they'reblack because they're a combination ofdiamonds and also graphite we have a box

With 1490 crystals of diamonds it's veryinteresting to me that they'd actuallycount them so carefully you can see eventhese tiny crystals a rule of Sahid ruleand if you look under the microscope youcan see these little octahedron

I looked in the microscope not very goodin microscopes with my glasses but evenI could see that they were really niceand crystalline this one here is aso-called twin where two octahedra havegrown simultaneously in different

Directions so you get a less interestingshape and at the same time I wasfascinated that in this one there's acrack down and such a strong materialbut even so sometimes it can crack andthen down here is a an interesting

Crystal tiny but it has three twins thathave grown simultaneously so you havesixth octahedra won't close togetherthese are the different qualities of thediamonds some diamonds are clearer nicershaped crystals than others and again

They have standards to make sure thatthey classify all of them correctlybecause once you've got a big box ofthem if you've made a mistake you haveto sort them all over again thesediamonds are not completely pure carbon

They contain traces of nitrogen youcan't see this with the eye but you cansee it by using a UV light so Nataliawill just put the biggest diamonds ontoa UV lamp and you can see suddenly itgives out blue light

And you can tell that different diamondsfluoresce different amounts andoccasionally you can get a differenttype of nitrogen center which instead ofbeing blue is yellow so Natalia willshow you one now one of the cubic ones

And you can see it's a greenish yellowcolor again this is a really nicedemonstration of spectroscopy and youcould analyze it even better lookingthrough a spectrometer to get theprecise wavelengths of the emissions so

Here you can see there's a nice blueglowing octahedron can we try the pinkdiamond you can see that one doesn'tfluoresce at all so it probably doesn'thave any nitrogen sensors in it or atleast none that will absorb but again

This is a nice way of categorizing thedifferent diamonds so that you learnmore about their structure learn moreabout their chemistry let's try the pinkdiamond as well I think that's reallyinteresting the pink diamond fluoresce

Is blue but you wouldn't have guessedthatI'm in the sorting Department where theraw diamonds are graded it's reallyamazing the diamonds that come here lookrather like sand if you look here in

This bowl I can just pour some out butwhat's amazing is that people go throughthis literally grain by grain they haveabout 8,000 different grades which theyknow they remember and they classifyeach of the grains according to the

Grade and here we have about 26 or 27thousand karats in weight of diamondsthe total value of this doesn't lookvery much is more than a million dollarsthat's why people are watching mecarefully I'm wearing a special coat no

Pockets and even these tiny grains looklike little octahedra tiny crystals andyou've got to remember that these grainshave been obtained from a solid mass ofrock which has been ground up and out ofthe rock they filter off these special

Diamonds and what's interesting here isthat you can see different colors someof the grains look a bit yellow somelook really clear one or two a grain soit's like my hair but my hair should begraded in color particularly interesting

For me is that all of this is sorted byhand because they are so valuable thatit's worth people looking at each oneindividually that's why every diamondsshould be to youreally special

It's amazing I've never seen anythinglike this it's it's unbelievablethey're going to let me touch it with myhands watch carefully only time in mylife I'm going to wash my hands indiamonds feels just like sand it's quite

Strange it feels a bit like metalbecause diamonds conducts heat very wellso it feels as if I'm holding metal Ithink I could do this for quite a longtime if they let me but still hereyou've got a million dollars worth of

Diamonds literally running through myfingers some of them are sticking to myhand no lividity she is there yes Ithink this is the most extraordinarything I've ever done on periodic figuresand certainly the most fun the gold is

An exciting element it has interestingchemistry and it's just sitting heredoing nothingits enormous ly impressive but it's abit sad rather like a mausoleum

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