Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series
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- Опубликовано: 21 янв 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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www.gia.edu/blue-diamonds-hav...
Thankyou everytime for your teaching and sharing,Sir ! Very helpful for me learnig about diamonds and other gems.😍
Very informative, and Dr. Evan Smith seems to truly enjoy what he does, and it shows! Thank you for sharing this for free
So far your video of the many pictures as been very helpful.thank you very much
Fascinating. Thank you for such a professional in depth presentation.
Keep it up, your teachings are very helpful.
Thanks.
Thanks again for your time
great presentation !!! very informative and detailed, love it !
Very happy to watch your video
Very Clear lecture
This is very good detail ....
Thank you so much for sharing this video.
Thank you very much
Good and useful topic. Thank you for this simple method..Greetings
Good information👌
Good video
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
what about impact diamond petrified cactus? very interesting
Hi GIA
Can you please recommend any website on social media do have a look more on rough diamond please
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
Good lecture . Corlia Roberts Diamond 💎 Student .
Haha! same here. Was reading the material and was quite confusing so I came for help.
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
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?
Everything you guys described and explained in your lecture. Your presentation says that I have 2 diamonds. I'm looking at them with magnification 2 diamond magnifiers. I have a diamond tester and it also says. They're diamonds and is. So I guess the only thing that will certify my curiosity and confirm is to take it to a GIA specialist.
I don't have any technical questions per say , however the frosted the groves and bubbles the platelets are all there..
When you apply a UV light on a rough diamond, do you see any electron moving inside it?
Do carbonado display trigons?
Looks like some in videos you showed us
I have rock test possitive dismond I need help
Sorry but the shape is the swan shape you mention at 17:03 - 17:28 I believe. It is the triangular head and tail coming from it
Goodday sir, I have a two kinds of stone, can you if it's true, diamond this sir
I have a rough diamond carbonado, how can I contact you?
Im watch gemeology !😊
Excellent 👌
I have some like this and l need help for sale
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.
a lot of the minerals in Arkansas fit every of these descriptions. Are these all diamonds?
Yes. Run Mitchell run, grab 'em all.
I needs to kindly help me sir
Esse vídeos parece que foi feito a 50 anos falta cor amostra Matriz conjuntural especificamente
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
Interesting. Tell me we're you ever able to get proper insight? Where would one go to sell a major diamond discovery in size and to reveal a undiscovered region that is diamond rich unbeknownst to the local population of that area? Thank you for your time and help. I also have a bunch of diamonds, meteorites and Dino skull fossilized that reads as diamond on my digital tester yet is too big for me to do my normal gravity test. Most ones I find have a purple glow under a blacklight. One of the meteorites glows a strong purple with the porous center glowing bright pink with holographic features. Before I broke a piece off when flashing g with a cell camera it completely looked different in shape and look. It shined like a bright clear Metalic diamond shaped like a rabid or ferocious looking chip munk or alien head of some sort but menacing about the size of my hand or say a grapefruit size. I can be contacted at ewingdouglas7@gmail.com or text me at 410-924-0397. Also have what I believe is sapphire but very large slab turning from blue to red at one half side. It's about the size of a roomba self driving vacuum cleaner and veryheavy/dense. I have a greenish orange meteorite football size with diamond looking features but can't definitively say for sure. I really need to find a appraisal source familiar in rough uncut diamonds , sapphires, and meteorites. I am willing to sit 50/50 the proceeds derived from any sales obtained from the selling of any stone or item I have with someone willing to partner with me with knowledge and/or resources to facilitate the appraisal and categorizing correctly of my collection and sale or leading to the selling of anything mentioned. Arbitration welcomed and rewarded handsomely if you don't fit the bill but know another who may have the abilities needed and can run with the ball to score. Any insight welcomed. Also looking for a parasitic dr for correct diagnoses of the parasite I've been infected with that local drs have no experience in testing for or diagnosing or treating and would prefer to turn the other way and either misdiagnose or label as fear of parasites chalking up as purely mental without any due dilligence based purely off opinion , speculation, & assumptions at the risk of my declining health. God bless all of my fellow rockhounds out there.❤
Lütfen Türkçe dilinden aciklarmisin lütfen başka dil bilmiyoruz bilgi verebilir misiniz teşekkürler işinizde başarılar dilerim abone oldum
Thanks for this you've greatly have helped my understanding and my have just changed my life may Yeshua Messiah Bliss you .
Surface diamonds are water worn tumbled through billions of years .soon I will make my day veiw
🤩💎🤗👍benim taşlarada bakabilirmisiniz acaba elmasmıdır🤔🤔🤔
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 RUclips 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
Funny he didn't mention cleavage can be in 4 directions . Heating and cooling cracks and cleavage mean Diamond can be any shape.
This comments section is comedy gold.
Take payment in Diamond shh
I have several rough diamonds any one interested?