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GIA (Gemological Institute of America)
United States
Приєднався 19 лис 2011
GIA is the Largest, Most Respected Nonprofit Source of Gemological Knowledge in the World
GIA exists to connect people to the understanding of gems. As a long-standing scientific authority, GIA is not only a unique source for diamond knowledge, its grading reports inspire confidence wherever they appear.
GIA's commitment to protecting diamond buyers inspired the Institute to create the 4Cs and the International Diamond Grading System™. These methods are the universal benchmarks by which all diamonds are judged. As the birthplace of these standards, and with its investment in continued gemological research, GIA's authority is unequaled.
The world's most respected retailers, museums, auction houses and private collectors rely on the expertise of GIA graders to assess, grade and verify their gems. They recognize the importance of complete, unbiased, scientific information in gem assessment, and absolutely trust GIA to provide it.
To learn more, visit: www.gia.edu
GIA exists to connect people to the understanding of gems. As a long-standing scientific authority, GIA is not only a unique source for diamond knowledge, its grading reports inspire confidence wherever they appear.
GIA's commitment to protecting diamond buyers inspired the Institute to create the 4Cs and the International Diamond Grading System™. These methods are the universal benchmarks by which all diamonds are judged. As the birthplace of these standards, and with its investment in continued gemological research, GIA's authority is unequaled.
The world's most respected retailers, museums, auction houses and private collectors rely on the expertise of GIA graders to assess, grade and verify their gems. They recognize the importance of complete, unbiased, scientific information in gem assessment, and absolutely trust GIA to provide it.
To learn more, visit: www.gia.edu
AGS Ideal® Report
Let’s get to know the AGS Ideal® Report!
The report evaluates light performance, including brightness, fire, and contrast, from the center to the edge. This complements a GIA diamond grading report, providing a comprehensive assessment of a diamond's beauty.
Watch the video or visit our website to learn more: www.gia.edu/ags-ideal-report
Learn more about GIA: www.gia.edu/
Follow us on Facebook: GIA4Cs
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The report evaluates light performance, including brightness, fire, and contrast, from the center to the edge. This complements a GIA diamond grading report, providing a comprehensive assessment of a diamond's beauty.
Watch the video or visit our website to learn more: www.gia.edu/ags-ideal-report
Learn more about GIA: www.gia.edu/
Follow us on Facebook: GIA4Cs
Follow us on Instagram: giagrams
Follow us on Pinterest: www.pinterest.com/gemologicalinstitute/
Follow us on LinkedIn: www.linkedin.com/school/gia/
Переглядів: 831
Відео
Gems of Northern Madagascar
Переглядів 2,6 тис.Місяць тому
Madagascar is one of the great wonders of our planet. Wim Vertriest, Manager of Field Gemology at GIA, takes us on a journey back in time to understand how the island acquired its incredible gemstone diversity for which it is known today. He shares highlights from a recent field gemology expedition to two remote mines in Northern Madagascar: one a demantoid mine and the other, a sapphire mine. ...
Natural & Lab-Grown Diamonds: What's the Difference?
Переглядів 3,2 тис.2 місяці тому
What are the major differences between natural and laboratory-grown diamonds? Learn more about laboratory-grown diamonds and natural diamonds, from how they are formed to how to detect the differences. GIA, the world leader in gemology and diamond grading, gives insights on how to make a decision about which kind of diamond is best for you. To learn more, visit: 4cs.gia.edu/en-us/laboratory-gro...
GIA Knowledge Sessions | The Fully Digital GIA Diamond Dossier®
Переглядів 11 тис.Рік тому
The GIA Diamond Dossier® is going digital on January 2, 2023 and this webinar will provide all the information needed to ensure a smooth transition to a paperless report format. Understand exactly how going digital will support your business and discover the multitude of resources GIA has created to make this switch seamless. Learn more about the GIA Diamond Dossier at www.gia.edu/digital-dossier
第40回 GIA Tokyo GemFest のご案内真珠の構造色について
Переглядів 3,1 тис.Рік тому
真珠の美しい外観は光の干渉によって生じます。それらは一般に干渉色と呼ばれ ています。本講演では、真珠の干渉色の原理や特徴などを解説します。干渉色の 分析の応用例として、干渉色の違いによる真珠養殖用ピース貝の選抜技術をご紹 介します。さらに、真珠の外観が再現可能なコンピューターシミュレーションに ついてもご紹介します。 The interference of light in pearls creates the luster and beautiful colors. In this presentation, the mechanism and characteristics of such interference colors will be explained. A technique for selecting oysters for pearl cultivation b...
Unfold the Future: The New Digital Diamond Dossier®
Переглядів 7 тис.2 роки тому
Since 1931, we have protected consumers with our research, standards and reports. Now, we want to protect the very earth that gives us the treasures we grade. The GIA Diamond Dossier® is the first report going digital, unfolding 2023. Access it anytime, anywhere with the touch of a finger. Send it, save it, scan it with a QR code. Learn More: discover.gia.edu/unfold-the-future
Amrapali
Переглядів 15 тис.2 роки тому
The story of Amrapali is that of passion and hard work to bring tribal-inspired and traditional Indian jewelry themes to life in today’s world as both modern treasures and fashionable jewelry. See the traditional Indian jewelry as well as the fashionable modern lines created in their factory. View the full article at www.gia.edu/gia-news-research/jaipur-india-jewelers-maharajas-modern-day-moguls
第39回 GIA Tokyo GemFest: スピネルの歴史と科学
Переглядів 3,4 тис.2 роки тому
近年人気が高まっているスピネルは、ごく限られた条件で形成されるとても希少な宝石です。かつてルビーやサファイアと混同されることが多かったため、スピネルはいまだにミステリアスな印象をあたえています。本セミナーでは、そんなスピネルの歴史と宝石学的な特徴、産地について紹介します。
Gem Palace
Переглядів 15 тис.2 роки тому
Entering Gem Palace is like finding a museum of treasures that continues to produce magnificent creations. View the full article at www.gia.edu/gia-news-research/jaipur-india-jewelers-maharajas-modern-day-moguls
Surana Jewellers
Переглядів 20 тис.2 роки тому
Learn about Kundan meena jewelry, polki diamonds, and other jewelry still produced as if for the maharajas of Rajasthan. View the full article at www.gia.edu/gia-news-research/jaipur-india-jewelers-maharajas-modern-day-moguls
The Jewelry of Moguls and Maharajas
Переглядів 27 тис.2 роки тому
Take a glimpse into Jaipur, India’s jewelry traditions going back to the early 1700s. Large diamonds, colored gemstones, and enamel are used for Kundan meena, some of the most opulent jewelry in the world. Originally meant for the Mogul emperors and the maharajas, this jewelry is now for the consumers of today. View the full article at www.gia.edu/gia-news-research/jaipur-india-jewelers-maharaj...
第38回 GIA Tokyo GemFest: 地質学101 天然有色宝石の形成プロセス
Переглядів 2,8 тис.2 роки тому
宝石はなぜ稀少なのか、またその中でもさらに稀少なものがあるのはなぜなのか?その答えは地質学にあります.例えばエメラルドは、極めて特殊な地質環境で形成されます。宝石ができるためには、異なる岩石が特定の条件下に集まるだけでなく、色の原因となる特定の元素が結晶中になくてはなりません。本セミナーでは、地殻の化学組成に基づき、地質学の観点から、世界で最も価値が高い宝石、ルビーとサファイア、そしてエメラルドの形成過程について紹介します。
关于锂紫玉及其他粉红色宝石的宝石学研究 | GIA 知识交流
Переглядів 3,1 тис.2 роки тому
20 世纪初期,在圣迭戈伟晶岩矿床上作业的矿工发现了一种全新的宝石 - 锂紫玉。 这种材料以宝石学家先驱 George F. Kunz(乔治·F.·昆兹)的名字命名,他是首位将锂紫玉标识为矿物锂辉石的粉红色到紫色的类别。 多年来,锂辉石在宝石和珠宝行业的知名度不断提高,现已成为一种极受欢迎的宝石。 与 GIA 彩色宝石研究高级经理 Aaron Palke(亚伦·保克)博士一起探讨锂紫玉及其他重要的粉红色宝石。
X 射线及其在宝石学中的应用 | GIA 知识交流
Переглядів 1,6 тис.2 роки тому
您知道吗?X 射线不仅能拍出骨骼照片,还可应用于宝石学领域。 X 射线可用于区分天然珍珠和养殖珍珠,协助确定某些宝石的原产地。 这种技术的独特之处在于,透明和不透明的宝石均可使用,在一些宝石鉴定的方面发挥着关键作用。 欢迎参加本次最新的 GIA 知识交流,与珍珠鉴定高级经理 Chunhui Zhou(周春晖)博士一起,了解更多有关 X 射线的知识。
Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series
Переглядів 14 тис.2 роки тому
Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series
Feel Confident in Your Diamond I Mila & Derrick
Переглядів 1 млн2 роки тому
Feel Confident in Your Diamond I Mila & Derrick
A Glimmer of Hope: The World's Most Famous Blue Diamond | GIA Knowledge Sessions Webinar Series
Переглядів 10 тис.2 роки тому
A Glimmer of Hope: The World's Most Famous Blue Diamond | GIA Knowledge Sessions Webinar Series
The GIA iD100® - The Ultimate Diamond Detecting Triple-Threat
Переглядів 10 тис.2 роки тому
The GIA iD100® - The Ultimate Diamond Detecting Triple-Threat
Consider a Career in Gems and Jewelry
Переглядів 5 тис.2 роки тому
Consider a Career in Gems and Jewelry
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 - Cantonese | GIA
Переглядів 1,8 тис.2 роки тому
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 - Cantonese | GIA
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 | GIA
Переглядів 1,7 тис.2 роки тому
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 | GIA
90 Years of Discovery and Innovation
Переглядів 4,3 тис.2 роки тому
90 Years of Discovery and Innovation
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series
Переглядів 11 тис.2 роки тому
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series
Переглядів 11 тис.2 роки тому
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series
第36回 GIA Tokyo GemFest: ガーネットの楽しみ―宝石として、そして科学の友として―
Переглядів 4,2 тис.2 роки тому
第36回 GIA Tokyo GemFest: ガーネットの楽しみ―宝石として、そして科学の友として―
Playing the Blues: An Overview of Sapphire Treatment | GIA Knowledge Sessions Webinar Series
Переглядів 14 тис.2 роки тому
Playing the Blues: An Overview of Sapphire Treatment | GIA Knowledge Sessions Webinar Series
Interesting Discoveries from the GIA Laboratory | GIA Knowledge Sessions Webinar Series
Переглядів 9 тис.2 роки тому
Interesting Discoveries from the GIA Laboratory | GIA Knowledge Sessions Webinar Series
Y.m.j.aburaas 0:06
pobres pulmones de esos infelices, respirando ese polvillo de las piedras todo el día
"since 1931 we been sharing EVERYTHING we learned with you - Richard T Liddicoat" i want build my own id 100 machine,, not pay 6000 euro's for it ! show us how.. or show us all the raman spectropys you did over the years that actually tells what gems are what and from where even.... edit,, and i want to hear GIA's Dr. Mike Breeding explain to GIA's Research Scientist Dr. Karen V. Smit, how the yellow is in diamonds are caused by nitrogene. cause, she say it is not, in the video titled "Where Do Yellow Type Ib Diamonds Form in Nature? | GIA Knowledge Sessions Webinar Series" .
Superbe WoW
The reason these stones have cracks is that they're "hard"! 😱 Anything thats hard "will" crack. 😳
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
Great informative video. Thank you for your due diligence.. I would like to speak with you possibly to introduce a new concept I have stumbled across by accident but is life & history changing. I have on video proof of another way diamonds in nature are formed. Amazingly enough it doesn't take millions of years as believed. I've seen it done overnight. This was done by a translucent worm like parasite that is intradimensional. I know, I know, believe me it sounds like a mad man ranting but I have the proof both in video and still images taken from this video. A portal the size of my hand opened on the hood of a car and this parasitic translucent worm comes through contorting itself into the shape of a serpentine looking skull head . I've also noticed before the repetitive snake or dragon looking shapes within the shape and sometimes internal structure of both diamonds as well as other crystals and minerals. I theorize these worms infected dinosaurs with their huge mass and as they died and became extinct and buried there was a layer formed of them and eruptions shatter these groupings pushing them up in what we call kinderlite pipes. I have been infected by this parasite myself and when using blacklist they glow blue under the skin
Blacklight I meant
One of the shapes you refer to and show in the video is the exact shape of this parasite which has a head triangular pizza looking at times a d depending on its stage of growth sometimes resembles a cat head with long ears that fold back and can resemble a gremlin with furrowed brow or angry look. It is a segmented worm like a tapeworm yet each segment is another face able to bite. In it's late stage it has hairs
I appreciate it! Thank you guys for your good job 👍 😊
excellent presentation
Thankyou everytime for your teaching and sharing,Sir ! Very helpful for me learnig about diamonds and other gems.😍
Ye kaha pr hai
Do you like to buy
I have some stones different colours
Pyrite is desirable in Lapis Lazuli...it helps establish authenticity....fine distribution is great... streaks less so... Calcite is not good, it weakens the stone and distracts from the colour...
Boa noite... Tenho 90% de certeza de ter uma Safira amarela ou incolor ..em estado bruto. Densidade testada . 3.94 Peso real 115 g. ( 515 CTS) Totalmente translúcida... Como obter contato de credibilidade com vcs ???
Natural diamonds are not rare in nature
so GIA can take any stone they want sent in for testing , call it radioactive, and pretend that its the government that took it ? that is SO bad
Wow Excellent
聽說有一度燒(一次燒)、二度燒(二次燒),真有這種情况嗎?燒過以後裡面的雜質沒有了,那麼裡面看得到有雜質的還是完全乾淨的才是有價值的呢?
У меня тоже есть не гретый фиолетово- синий танзанит , 12 ct. Я его очень люблю. Он всегда разный , он живой .
Where can i get a gia certificate for a big colored diamond in Europe? I'm from the Netherlands.
Is there kimberlite in cracks of a rough diamond like a small strip of yellow in a crevas
Thank you for that very educational and informative video. Regards from South Africa
You picture to see diamond mean my found 0.25 carat yellow ilision diamond
Many thanks GIA team , straightforward advice , simply explained.
✅
Excellent video, concise and straight to the point
Thank you. America has some value, after all. Hard to see it.
Excellent information.
i love this video. can you do more?
We south Asians hate the letter T 😀😀
ua-cam.com/video/UzU-qwotCjM/v-deo.htmlsi=BbHjkAmvzCjseWNY
Is there a translation copy of this video?
ua-cam.com/users/shorts3R7O9d_zeJM?si=z7wFJbYfJTxrhTTs
Olá Edu, sou Kennedy Oliveira, Sou da Secretaria de Mineração de Pindobaçu, adorei o seu trabalho sobre Serra de carnaíba, gostaria de ter o seu contato, para discutir assuntos de vosso interesse…
How much?
👍
A culet! <gasp!>
I must criticize the lack of objectivity and clear bias of the GIA. Whether synthetic or natural, a diamond is a diamond. This video looks like an ad campaign
Sir, if someone wants to get his stone tested, how can he get it done from your lab? I am Vijay Pratap Goswami from India. Sir, please give me information about this subject. It will be a great favor to you. I have created a channel of my stone on UA-cam with the ID of which like and comment. done this is my id
Hello, thank you for reaching out to GIA. If you would like to submit a stone for analysis at a GIA laboratory, please visit our website at www.gia.edu/how-to-submit-a-gem to get started. Thank you!
Very nice video
Would you agree that, GIA doesn't know how large diamonds are formed. GIA doesn't certify the names of mineral inclusions, GIA doesn't have knowledge on points naive diamond s of RAMULA KOTA. GIA DON'T INFORMATION on latest diamond mines. GIA DON'T HAVE EXACT INFORMATION on diamonds with less than 3.25 specific gravity. The certificate being issued by the GIA ARE NOT SACROSANCT IN MANY WAYS.
I want to test lonsdaleite diamond talk to me a little
I want to test lonsdaleite diamond talk to me a little
I want to test lonsdaleite diamond talk to me a little
Hi
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A Job Well Done Chris! Your friendly demeanor, warm vocal tone, and concise delivery of information made the video feel more like a private tour than a industrial informational. And to The Behind The Scenes Production Crew, here is my thumbs up salute for your work too.
Thx
Just learning about gold and jewelry while I wait for my next apt as a 💈 Barber, free time spent well haha