if it looks like a diamond, smells like a diamond, and tastes like a diamond, it's probably a diamond.

Next video - "I Made a Real Diamond Play Button"

I thought the ruby was a jolly rancher

I got a diamon for ten dollars. The person thought it was quartz.

Cody, would you do a video on Carbon Monoxide? Perhaps demonstrate ways in which it can be formed and how to detect it. People still die from it every year. It would be cool to warn people of it's dangers. Especially since it's a colourless and odourless gas. Maybe you could take it in another direction and do something interesting with it :)

Ohh thank you Cody! Love that you are using the metric system! Love it!

"Is this rock a diamond?" 6 Years old me: Yes

This rock is a diamond in the making Cody... You don't have to bring it down so much...

Check out the follow up video where Cody hangs out with what appears to be two homeless guys who broke into a water jet shop.

I would have stopped after the scratch test. Also Cody, you should purchase a synthetic color change sapphire/corundum. I own a half boule of the stuff and this stuff is pretty amazing. It is a cheap alternative to buying alexandrite. In white light the gem will appear blue, and in yellow it will appear deep dark purplish pink. Also I own a green LASER pointer and out of curiosity I tried shining the beam through the gem. The beam turns bright red, as does the entire stone. Very interesting science behind it too. Thanks for the great videos, Cody.

the testing was a waste of time... a lick test would be 100% conclusive and it would only take about 3 seconds

That ruby looked like candy. At 9 on the Moh's scale, it would be hard candy in the finest sense.

I liked the thermal test. Didn't know it was such a heat sink.

Glad to see finally a real scientific instrument being used on one of Cody's experiments. Mitchell (Waterjet Channel) Tongue.

What a great collab/crossover - both channels gain potential new audiences and both of them are kinda on the same side of the geeky/awesome spectrum. Always great to see such collabs!

Oi now I really want to see the water jet cut attempt but it's not up yet. :(

Hey Cody, try burning the supposed diamond in pure oxygen. If it burns, it's a diamond.

Cody just to remind you most people came here to watch your mine videos maybe blast out a room at the back, set up a solar battery array for lights, make a underground proper garden, refine ores found in your mine, that is something 99 percent of people can't do is own a mine and blast on their own property that's how I found you and I think allot of people will agree

A similar water/scale process is used to identify specific gravity.

Hey Cody. Wikipedia says, that natural diamond has more than 5 times the thermal conductivity of copper - 2200 W/(K*m) vs ~401 W/(K*m) for copper. Monocrystalline isotopically pure diamond (99,9% C12) has thermal conductivity of 3320 W/(K*m). As far as I'm concerned, the latter value is higher than graphene, and highest known for a solid material at room temperature.

When i Buy i Diamond "I will keep you at all costs and never let you get destroyed" When Cody buys a Diamond "Huh... Can you cut it with water?"

I was wondering how smart he was until I saw his jacket was zipped all the way up. Must have brains with that sense of style...

when you determine the volume of an object using the water replacement method you propably should use something you can lay your object neatly unto instead of just a wire. just so you get rid of any inaccuracy from bending the length of the wire at all. not that big of a deal, just something i thought seeing this

I suspect that the published density value for diamond is calculated for a clear gemstone quality diamond. Your stone has inclusions and impurities, which probably accounts for the slightly lower density. Also the surface is pocked with cavities which may retain air bubbles underwater, giving you an inflated volume reading.

This reminds me of how kids always say I found a diamond! When I'm thinking that's a piece of glass.

Did you rule out SiC (moissanite)? Silicon carbide has a density of 3.21g/cm3, so even closer to your reading and a thermal conductivity slightly lower than diamond, but higher than copper, and it's hardness is 9.5, which would also have scratched the ruby..

Sweet. Only need 2 more for a pick axe! That should help speed up the mine quite a bit.

Not just porosity but surface tension between the water and your diamond will give you higher measures of volume.

it should glow under UV, can you try?

Are you planning on doing that collab with EthosLab?

Best test is rub it on sand paper and if it runs along like soap its a diamond but if their is friction its not. Use the very fine black sand paper

GREAT job cody - and the collab was fun to see as well.

Yay! WaterJetGuys

All those calculations when the water jet guy could have just tasted it for you.

When you measure the volume of the stone, the water level raised slightly compared to when you tared out the wire. That means that slightly more of the wire was submerged during the proper measurement than when you tared it, and your density measurement would me off slightly. It would explain why you measure it slightly less dense than the expected value...

the thermal conductivity of diamond is 2200W/(m·K). More than 5 times as much as copper.

Is it possible to do anything more with that diamond? Or is it useless?

good choice of channel for a collaboration :) can i recommend the Hydraulic Press Channel, Colin Furze, and AvE, they would also be awesome choices for collaborations

Specific gravity diff is because u have a Diamond aggregate or bort. That is why placer diamonds have a higher percentage of gem yield, because the aggregate diamonds or ‘crap’ gets pulverized by streams on the way to the ocean.

Found them allot when i was mining diamonds. We called it *board* diamonds. Used after excavation as pan testers. Or sorting testers.

Ever thought of making a synthetic diamond?

Came here from the water jet channel lol

It does not look like a single diamond crystal, but a concretion of multiple crystals, together with silicate impurities. That would explain the low density and the grainy appearance. It is the most suitable diamond as abrasive

Cody’s lab AND Waterjet channel together?!? AWESOME!!

Are you going to do anything with the Uranium

Jesus Christ Marie! They are minerals!

Cody'sLab: the only channel, where I'm watching the intro twice, pausing while watching it, not skipping.

Have you ever considered attempting to make your own synthetic diamond? Doing a diy chemical vapor deposition setup seems to be something right up your alley. Perhaps you could use a fragment of this lower quality diamond as a seed. Keep the videos coming!

If it burns away at 850° C you know it had been a diamond :))

I'm gay for macro shots

It is so awsome to see cody supporting these guys from the waterjet channel i watched the waterjets vid and it was like two great gods got together to create pure awesomeness

From Wiki... Naturally occurring diamonds have a density ranging from 3.15 to 3.53 g/cm3, with pure diamond close to 3.52 g/cm3.

I don't get the water displacement trick. Isn't it the same amount of water?

What is this? A crossover episode?!

Carbonado. You mentioned clarici which is very poisonous . In the geological lab where I worked, TBE was used to separate diamonds from quartz and other smaller SG minerals. One has to be careful as diamonds, especially small ones can float off in water because of the diamond's greasy lustre and surface tension.

I have found rocks that look like that before . I thought it was just mica. Now I know a few simple tests I can do. tnks

No it's Dwayne Johnson...

Awesome!

2:03 thats the same way archimedes solved the golden crown problem........ good job learned a lot

Giant fan I tell every one I can about your videos man coming from North Carolina keep it up!!!!

Waterjet vs diamond - 1:0 :(

Cody's lab? more like cody's THICC

You've come so far! I started following you when you were under 100,000 and now you have a million and you showing up on trending!

So doing a quick google search what you have is called "Bort" and should have a slightly lower density to a pure diamond. From what I understand is that its a large amount of small diamond crystals held together with some quartz or other crystalline material. It can range from being a iron oxide filled yellow mess that is often from the Congo to a pale silvery crystal that you have.

So if I understand right, the water jet guys ended up using diamond substrate to cut your diamond?

Was bored, now I'm not

the problem with waterjet is that the thing is a poly crystal, so it possible it was torn apart because connections between crystalls weren't good enough. Still interesting result. beyond press had a diamond for pressing, would be interesting to see if such a crystall can be defeated and put on wall of shame.

I love watching this guy break down and bring back metals. it is so satisfying

do you know de wei? Cody

Diamond is found in 0 -40 and has blue specks . so no not diamond.

"Its $125, i needed to play with a rock" a $125 rock to play with 😂😂

Recently stumbled across your channel. So far I've watched about 60 consecutive videos and now I'm starting from the beginning. Great content!

You should hide your fingerprints on close shots

Cody you should get a soda can while it's full and ruff up the bottom and put mercury on it

Ha! I was wondering why their two video thumbnails seemed familiar in my sub feed. It's great seeing Cody watches the good stuff!

this what i love with cody.

Love the new intro. Reminds me of the old PBS science shows like Nova.

Another, more destructive test would be heating a sample white hot and dropping it into liquid oxygen

Maybe elaborate on the chemical and physical priorities of diamond? The "street diamonds" video really sparked my interest.

That's a Carbonado (black diamond). Is less denser than a diamond, that's why you got those numbers. Look it up.

Very cool video on my half birthday! Your videos are very interesting Cody!

my guess is it's actually carborundum , or silicon carbide, it's a 9.5 on moh's with an average density of 3.21, and it seems more likely in my opinion that that is what you bought.

YES THE WATERJET CHANNEL

*_[... synthetic... Ruby?... I don't know how to feel about this]_*

I’m glad you went to the water jet channel and had the lick test done to confirm it’s a real diamond

You’re on trending man!! Congratulations

I totally think that a water jet could for sure "cut" that. It might not cut it _straight_ but I still think that it would certainly break, since it's not a pure, "perfect" diamond, but rather full of cracks, holes/bubbles, and contaminants.

Please , try to extract gallium metal from LEDs , they should contain gallium arsenide or galium phosphide , I've never seen this before on KZfaq , so it should be very interesting , sure it will be a very small amount , but still cool as a proof of concept 😊

Dear Cody, I love your videos. You should make more of the geo-box videos with the different layers to show how some geological events work.

OK it took awhile for me to understand what is happening to the scale when the rock was lowered into the water. I understood the whole density/volume thing but where did the extra weight come from when there is the same amount of water in the beaker? Basically it is the buoyant force acting on the rock being translated to the scale. The buoyant force being equal to the amount of the water displaced. SO even though the rock is suspended not all of its weight is being supported by the wire some of that weight is supported by the water and that is what shows up on the scale. (This may be obvious to most but it's been decades since I took basic physics.)

If it is a diamond it is a very low grade diamond the kind they use for industrial use for grinding and cutting applications.

I remember when I was a kid I found many crystal in river that shape like 💎 but I thought that's nothing,but now I got a idea that's a real diamond, how sad I'm far away to my country someday I go back and find diamonds where I found when I'm kid.

Shout out to the waterjet channel! Came here thanks to them

Congratulations on being the 48th most trending on youtube. (At the time I'm watching this)

We all love codys lab!! ❤️

'I just wanted a large stone to play with', Cody, you're amazing

Guy from eBay was puckered up watching this vid...wasn’t expecting Cody to give it his stamp of approval 😂

That was a fantastic looking tick mark

Wow the volume trick was genius! But you didn't explain 1ml = 1g which I only vaguely remembered. Had to watch 5x.

Was not expecting link to water jet channel, awesome!