Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series
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- เผยแพร่เมื่อ 21 ม.ค. 2021
- GIA Knowledge Sessions Webinar - recorded live on January 21, 2021.
Once cut and polished, diamonds of similar size, shape and quality may look similar to the unaided eye. But in their rough form, natural diamonds have distinctive morphologies that tell much about their formation and their volcanic journey to Earth’s surface. Natural diamonds can form as glassy octahedral crystals, flat macles, in unusual spherical shapes and more. During their volcanic transit up to Earth’s surface, they also often acquire intricate markings from corrosive fluids. Tune in as GIA Research Scientist Dr. Evan Smith unravels the story behind rough diamonds’ unique morphologies.
Read more of Dr. Evan Smith's research:
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So far your video of the many pictures as been very helpful.thank you very much
Very informative, and Dr. Evan Smith seems to truly enjoy what he does, and it shows! Thank you for sharing this for free
Fascinating. Thank you for such a professional in depth presentation.
great presentation !!! very informative and detailed, love it !
Very happy to watch your video
Thank you so much for sharing this video.
Very Clear lecture
This is very good detail ....
Hi GIA
Can you please recommend any website on social media do have a look more on rough diamond please
Good and useful topic. Thank you for this simple method..Greetings
Thank you very much
A Laminate usually surrounds the diamond on the outer surface,until it is remove by grinding or picking the laminate off by hand. It's like slag or the impurity's that have been pushed to the outside edges that surrounds the diamond
Hello im an artisinal gold and diamond miner in southern California. Ive discovered a local diamonddiferous kimberlite pipe and have the specimens to prove it. What should i do?
what about impact diamond petrified cactus? very interesting
Muchas gracias por su gran trabajo y aporte tan bien explicados ami me gusta la numimastica pero por cosas de la vida ahora me apasiona la geología desde Chile un saludo gracias máster
When you apply a UV light on a rough diamond, do you see any electron moving inside it?
Do carbonado display trigons?
Good lecture . Corlia Roberts Diamond 💎 Student .
Haha! same here. Was reading the material and was quite confusing so I came for help.
Good video
Good information👌
I have a rough diamond carbonado, how can I contact you?
I have come across POINTS NAIVE DIAMONDS. Here in India, the IGI, GIA and other diamonds examiners, PROBABLY NOT READ AND UNAWARE OF OTHER METHODS OF TESTING. ie Spectrometers, Refactometer
Looks like some in videos you showed us
I have rock test possitive dismond I need help
a lot of the minerals in Arkansas fit every of these descriptions. Are these all diamonds?
Yes. Run Mitchell run, grab 'em all.
Very educative, l have a ballas-like flawless green diamond from alluvial deposits. How can I send you (Dr Evans) the pictures or can some one help me with his email or what's up no.
Goodday sir, I have a two kinds of stone, can you if it's true, diamond this sir
I needs to kindly help me sir
I have a coaches found in Kimberling. the man. rolled over and brought the diamonds up. my problem is these stones have a dual refractive or they give a dual pocket on xray. the overlay of the optical property's prevents the light spectro from reading the stones properly. this also with laser focused through the stone shows layering that makes holograms. I need to get these certified. and they maybe needed for optical advancement. they pass all old tests but they don't work on the new testers.
chaches,mtn.,
pics
If you know more about rough diamonds then I would like you to check some of the rough stones I have posted and let me know what your thoughts are, I would appreciate it
Im watch gemeology !😊
Lütfen Türkçe dilinden aciklarmisin lütfen başka dil bilmiyoruz bilgi verebilir misiniz teşekkürler işinizde başarılar dilerim abone oldum
Excellent 👌
I have some like this and l need help for sale
Esse vídeos parece que foi feito a 50 anos falta cor amostra Matriz conjuntural especificamente
Surface diamonds are water worn tumbled through billions of years .soon I will make my day veiw
Thanks for this you've greatly have helped my understanding and my have just changed my life may Yeshua Messiah Bliss you .
have the exact same stones as raw diamonds, in fact I have 2 which are exactly like Lasedilarona, but in my country our rocks are not recognized, you can open and see on my TH-cam channel, if you intend to buy I want to sell it, it's up to you want to appreciate how much I accept. we collectors and seekers of diamond raw rock disappointed with the existing lab in our country.
0:10 0:28
I have a variety of rough diamonds.im not a cutter just a collector.and I am looking for buyers that are looking for unique rough diamonds
Which country are you?
You are blessed
Thank GIA
🤩💎🤗👍benim taşlarada bakabilirmisiniz acaba elmasmıdır🤔🤔🤔
Funny he didn't mention cleavage can be in 4 directions . Heating and cooling cracks and cleavage mean Diamond can be any shape.
Take payment in Diamond shh
I have several rough diamonds any one interested?
This comments section is comedy gold.