is this real diamond ? What is the difference between Diamond and quartz? 

Yeah that's an interesting specimen! Looks like clear quartz aka herkimer diamond, but I'll be honest I've done so much research and it's extremely hard to find out real information when trying to identify minerals and gemstones alot of the time. Diamond testers I guess are not always reliable, plus there's a better way to identify diamonds and that's by learning all the unique properties. The ultimate game changer for me in identifying diamonds was when I bought a gemologist loupe with x80 for less than $20. If you look hard enough with the right angle and lighting you should be able to tell if the stone is isometric or hexagonal. Luckily the one you are holding is gigantic so you don't need a micro scope to see that it's not a diamond. I'm not sure if it's due to the camera lense, but it looks like there is some display of Pleochroism, which would mean that this isn't quartz. There are MANY clear crystal gemstones that are colorless just like this, even sapphire, which in fact is a stone that displays pleochroism. So if it's not the camera doing that, I would have to say based off of my guess is that it's more likely a sapphire than quartz. Who knows though it could be a few other things as well you would have to do a little bit more digging. Gemstones and minerals are extremely difficult to identify with the eye alone.

I have THE EXACT same kind of stone. I sent mine to GIA and they told me it is a natural quartz.

Keep in front of sun if rainbow colours apear its not diamond ..if gray color comes then u r lucky to have that diamond , as we all know diamon will not shine like crystal its shining is little lower than crystal

Moonstone, opal, quartz and diamond all have blue flashes. Use a electronic diamond tester.

I have something very similar but mine is way more transparent even passed a diamond tester but I'm still skeptical mines a bit more round and a little bigger though I posted a video on RU-vid titled "I hope this isn't quartz"

Very nice stone 👌💎

that's obviously quartz mate. look at the shape and all those pores. diamonds in the rough still have straight edges and bipyramidal shape. besides it's very unlikely you could find a diamond that big. and impossible outside india or africa. you could try to scratch it with sandpaper

Where different quart and rock diamond

I really liked the stone that has been shared wonderfully

Its non other than crystal ...fog on it for 3seconds if diamond fog will not appear on it if appears its not diamond

i think this is quartz

Guys mine has partial flashes of pink green , gold blue I don't know what it is ... does anyone know please tell me

Rub in sharpening stone which is used for chesel sharpening if marks or weare and tare then its not diamond

Moonstone

Gotta look for triangles trigons

Flashes of blue…. It is a moonstone.

Topaz maybe?

It would help if he at least say a few words

quartz

Diamante

How much Price?

Quartz

It is a diamond.

I have same stone

quartz !!!

wtf is it???🙄😁😁

its real

It is not diamond

Topaz

hi

Is this diamond or quartz??

I had this kind of stone but i confused that is that topaz or diamond

Not daimond

I have similar

Gercekten muhtesem tasiniz var bunuda sertifikalandirdim çok üzgünüm MTA kuvars diyor sizi üzmek istemem başarılar dilerim inşallah en kıssa zamanda Elmas bulursunuz

No diamond. You can't see through them

No rainbow color in diamonds sorry u can still searching😂😂😂

Diamond!

Goods

I have this type stone

Güzel paylaşım olmuş emeğine sağlık arkadaşım

Original or duplicate brother

Well isn't a diamond

Crystal

Abe bhai ye he kya quartz ya daimond ?

Wow so beautiful 👌

Wow so beautiful 👌

From SA

Very nice! 👍

I have same stone

I think that is not a diamond it's gemstone ...