gia diamond essentials

As mentioned above, a GIA diamond is really shorthand diamond sellers use to describe diamonds that have been graded by GIA. This course covers how to describe diamond jewelry accurately for effective and ethical sales conversations with customers. -Step: Long, narrow, four-sided facets arranged in rows that are parallel to the girdle on both the crown and pavilion. Practice identifying more than 60 species of gemstones, distinguishing natural from laboratory-grown gems and detecting gem treatments. The star facets are where the arrow heads come from and the lower girdle halves are where the arrow shafts come from when viewing a Hearts and arrows image. I learned a lot about diamonds while hunting for my engagement ring, but I wanted to learn more so that it can help me with any future purchases. A GIA diamond grading report gives you all the important information you need to know about a diamonds 4Cs, as well as its fluorescence, any treatments and more. Rather, like other scientific laboratories, GIA issues a report on the results of its evaluation of a particular diamond and believes report is the appropriate term to describe its grading results. To be sure your diamond was graded by GIA, ask to see its GIA grading report. Featured 29 items GIA Gem Identification Student Package. Purchase of this book is not required for successful completion of the course. World Headquarters andThe Robert Mouawad Campus5345 Armada DriveCarlsbad, California 92008Tel: 760-603-4200. The gia distance education program is really a self-study course and part of the pre-requisite to get the diploma. -Mixed: Have either brilliant-cut crowns and step-cut pavilions or brilliant-cut pavilions and step-cut crowns, create, study and share online flash cards, Click here to study/print these flashcards. Please try again. LGDR by GIA Laboratory-Grown Diamond Reports. I had so much fun and it was a fairly easy course. All rights reserved. This course examines how to buy and sell akoya, South Sea, Tahitian and freshwater pearls with insight and skill; and GIAs 7 Pearl Value Factors: size, shape, color, luster, surface quality, nacre quality and matching. Amazon has encountered an error. Courses with prerequisites must be taken in the required order. That obviously isnt the case for me, so the first 5 chapters were great but the last 2 chapters were boring and irrelevant. On diamonds with ideal optical symmetry, the optics emitted through the star facets have a direct correlation to lower girdle facet length. All rights reserved. 2002 - document.write(new Date().getFullYear()); Gemological Institute of America Inc. GIA is a nonprofit 501(c)(3) organization. Each carat is equivalent to 0.2 gram, meaning a 5 carat diamond weighs 1 gram. I started exercising, cooking, cleaning more often, creating gem paintings, and I also took the GIA Diamond Essentials course (GEM 130). 2002 - document.write(new Date().getFullYear()); Gemological Institute of America Inc. GIA is a nonprofit 501(c)(3) organization. Clarity is based on a diamond's inclusions. I bought both. Amazon has encountered an error. The Origin of Wedding Rings: Ancient Tradition or Marketing Invention? Courtesy: Chip Clark, Smithsonian Institution. The course was very easy. Popular e-commerce websites also sell GIA diamonds. Courtesy: BlueNile. Small facet at the bottom of a finished gem. eLearning courses have scheduled starts every Monday. As an independent research and educational institute, our mission is to protect the public and deliver objective, impartial science-based information about diamonds and gemstones. All rights reserved. Use of this site signifies your agreement to its terms of use. Find a retailer that offers GIA-graded diamonds. Do GIA certified diamonds cost more? GEM130 Diamond Essentials Book. GIA is a nonprofit 501(c)(3) organization. eLearning is flexible, so you can work at your own pace in a way that best fits your lifestyle. Once you complete the course, you will also get a nice certificate in the mail. Learn the motifs, metals and stones that lovers used throughout history to pledge their love and commitment. I hope you can get some relief soon! We dont sell diamonds. All rights reserved. The final exam is online, closed book and proctored. So in that sense the star facets are dependent upon that other measurement. GIA (Gemological Institute of America) is a nonprofit composed of cutting-edge scientists and educators dedicated to upholding gem and jewelry standards for the grading, identification and manufacturing of diamonds, colored stones and pearls. Clarity grades can impact the value of your diamond, but how much do they impact appearance? Im curious to know how in depth it is because I know already quite a a bit about jewelry basics but I want to learn more specific and in depth details. Retail jewelers are uniquely qualified to obtain a GIA report and to explain its contents. Free shipping on all U.S. and select international orders. GIA's mission is to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality. You may have already heard or learned about the 4Cs of diamond quality: color, clarity, cut and carat weight. GIA does not mine diamonds, nor does it buy, sell or trade them commercially. Save and organize reports, or create a diamond wishlist. Courtesy: 1stdibs.com. I've always been super interested in diamonds ever since I chose my engagement ring and when I was little I loved wearing jewelry and had a natural attraction to shiny things. Learn the difference between VVS and VS diamonds. Legal Last Name*. Coursework includes how modern technology is changing the way diamonds are cut, the relationship between size and weight, and how retail jewelry stores operate. A grade is not issued until sufficient consensus is reached. When you are ready to look and play with real diamonds, you are no more than a train ride away from Antwerp. Carat measures the weight of a diamond. Verify that your diamond has an authorized GIA report by pairing the GIA App with the GIA Match iD. When COVID started and everyone was told to stay home, I had a lot of time to find ways to keep myself entertained. All rights reserved. There is an option to buy the course book for $65 but its not mandatory. The final exam is online, open book, and does not require a proctor. Carat Weight ad Value 6. Look for more information about GIA Education in your email inbox. Other topics include how precious metals are regulated, marketed and tested, and the key components of a compelling product presentation. More impact This empowers you to compare the quality of loose diamonds, and decide which one is the best value and right for you. This course covers the skills needed to grade the color, clarity and cut of diamonds. The online application process was super easy and all payment and course links are accessible through the student portal. Our Privacy Notice includes a description of how we use your information and the locations to which it may be transferred. As others have said, read the material thoroughly and you should be just . The price is not prohibitive ($350), and you work at your own pace. Daisy, I am currently taking the GIA Diamond Essentials course, it is their beginning diamond course. The cushion cut diamond a historical favorite is trending again, and its easy to see why when you look at this 7.82 ct stunner, which GIA graded J color, VS2 clarity. There were a few questions on the final that did throw me off because it required more thinking but I passed with over a 90% on my first attempt. You will be required to provide your GIA student ID number at checkout to complete your order. GIA grades diamonds of all shapes, and the square-shaped princess cut is one of the more popular for engagement rings. I also loved learning the history of diamonds, the actual process of making a natural diamond into a store-ready diamond, the different technologies, FTC (Federal Trade Commission) laws, and most importantly the GIA grading system. How does GIA ensure objectivity when grading diamonds? Available to GIA students only. GIA established the 4Cs and the International Diamond Grading System that is being used worldwide as the standard for evaluating diamond quality. No. You can drop off a stone at any of GIAs nine laboratories, located in gem and jewelry capitals around the world, or you can ship it to GIA. Coursework includes how modern technology is changing the way diamonds are cut, the relationship between size and weight, and how retail jewelry stores operate. JavaScript is disabled. The angle formed by the bezel facets and the girdle plane, The separation of the white light into spectral colors. Yikes! GIA recommends submitting your jewelry to a jeweler familiar with GIAs diamond submission process. Thats why its important to compare prices for diamonds that have the same 4Cs quality characteristics and whose qualities have been accurately and objectively graded by the same independent laboratory like GIA. Offer incentives to customers to join and build your mailing list. Posted: Fri Mar 08, 2019 7:16 pm . MASTERPIECE - PERFECT for the bookshelf.. I believe you can take the exam up to three times if you don't pass. It is assigned a bar-coded label that is used to track it throughout the process. It looks like WhatsApp is not installed on your phone. The modern carat system started with the carob seed. Another 24 baguettes and 136 round diamonds totaling 1.62 carats decorate the band. Color measures a diamonds absence of color and is graded on a D-to-Z scale. GIA itself does not use the word certificate to describe the document it issues. Use this popup to embed a mailing list sign up form. You may have already heard or learned about the 4Cs of diamond quality: color, clarity, cut and carat weight. Study with the education leader for gems and jewelry, Enjoy a flexible schedule and courses that start weekly, Instructors are available to provide support, guidance and expertise, Access to an active global alumni network. As long as you read the chapters and memorize the key terms and key concepts youll be fine. The most convenient way to obtain a GIA Diamond Grading Report, Diamond Origin Report, Diamond Dossier or Diamond Focus Report is through a local fine jewelry retailer. Valued Contributor: Joined: Mon Mar 12, 2007 2:03 am Posts: 324 Location: San Diego Essentials course final exams are open book, non-proctored and contain 50 multiple choice questions. Coursework includes how modern technology is changing the way diamonds are cut, the relationship between size and weight, and how retail jewelry stores operate. Making sure the diamond youre eyeing comes with a GIA diamond grading report is like getting an independent inspection before you buy a car or house. Many diamonds in stores and online will already have a GIA grading report, which you can ask to see prior to purchasing. Eh, I have to call Monday. Please try again. Learn how the 4Cs affect appearance and value via videos, articles and interactive tools. Fill in the form here to get more information on the benefits of a GIA education, including our online and on-campus courses. An optical property- the difference between the RI values of specific violet and red wavelengths of visible light for a given material. Diamond that does not have visible inclusions or blemishes when viewed under 10x magnification. Full content visible, double tap to read brief content. This 1 carat (ct) diamond center stone is cradled by another 0.50 carats of diamond melee. What does it mean for a diamond to be a GIA certified diamond? Copyright: GIA & Harold and Erica Van Pelt. Our expertise is not just a profession to us, but a passion, which is one among many reasons that drives us to stand out in the industry as a leading authority. Spotlight on Botswana Diamonds. However, given the complexities of packaging, shipping and insuring diamonds, and because GIA only grades unmounted gems, your best option is to work with your local jeweler to submit the stone on your behalf. Additionally, the course covers how and when to use gemological laboratory services and how to use gem identification skills to protect your business from costly mistakes. GIA is an independent, nonprofit organization that conducts gem research, educates gem professionals and sets the standards for determining diamond quality. You will carry out testing procedures and techniques on sets of practice stones. The final exam is what really matters, it consisted of 50 multiple choice questions and the passing grade is a 75%. The brightness created by the combination of all the white light reflections from the surface and the inside of a polished diamond. Subjects covered include the language of colored stones; colors powerful role in gemstone value and the unique characteristics of popular colored stones; and how color, clarity, cut and carat weight affect a gems value. Did you know that some diamonds glow or fluoresce under long-wave UV light? The most convenient way to obtain a GIA Diamond Grading Report, Diamond Origin Report, Diamond Dossier or Diamond Focus Report is through a local fine jewelry retailer. I also loved learning specific details of a good quality diamond because it further confirmed the great quality of my diamond. Where can I find a GIA diamond ? I highly recommend this program for everyone who sees a future career in jewelry and even for those who are interested in diamonds like me. Students applying online must register prior to midnight Pacific Time the Sunday before the class start. This thread has piqued my interest. In this blog, we answer the following questions: What is a GIA diamond ? Brilliant cut. Graders usually base a fancy cuts color grade on the amount of color they see in the pavilion in the diagonal direction. On eBay, you can find tons of diamonds with misrepresented quality. Definition. This course covers how to describe diamond jewelry accurately for effective and ethical sales conversations with customers. One of GIA's main functions is the grading of diamonds. The final is also open-book so I recommend downloading the book as a pdf from the student portal and if you get stuck on a question, do a Find command to quickly find the answer. Good luck and enjoy! Find a retailer that offers GIA-graded diamonds. Ready to shop for an engagement ring? Brief content visible, double tap to read full content. While the diamond is being evaluated, it can also be laser inscribed with a GIA Report Number and/or a personal message, symbol or special date for an additional fee. 1996-2023, Amazon.com, Inc. or its affiliates. All the questions for the quizzes and final exam are mainly based on those terms. Courtesy: Rogel & Co. Inc. GIA has robust procedures in place to ensure a diamonds anonymity and the objectivity of the grading process. Colored Stone essentials. Again, GIA certified is really a misnomer for GIA graded diamonds. I started exercising, cooking, cleaning more often, creating gem paintings, and I also took the GIA Diamond Essentials course (GEM 130). Courtesy: Photo by Gianni Bozzacchi. I didnt buy the book because once the course started the student portal has the book online that I was able to use, so if you want to save money skip the book and just take a lot of notes. The Jewelry Essentials, Colored Stone Essentials, Diamond Essentials and Pearls courses have open book exams and do not require a proctor for the online final exam. With respect to Color, most diamonds used in jewelry are.. Nearly colorless with light yellow tints Colored Diamonds Diamonds in colors outside the Normal Color Range. Help others learn more about this product by uploading a video! Gemological Institute of America Inc. GIA is a nonprofit 501(c)(3) organization. You may take eLearning courses that do not have prerequisites in any order. Practice the techniques to identify more than 60 species of gemstones. 5345 Armada Drive. You are using an out of date browser. View Course Details. A diamond engagement ring is one of the most important purchases youll make. Content includes the unique qualities of precious metals and how to identify jewelry types and styles, using industry terms to describe them to customers. Post subject: Re: GIA Diamond Essentials final exams. Key topics examined include the internationally accepted GIA clarity grading system, how diamonds are graded for color and how color affects value. Considering that couples spent an average of $6,351 on an engagement ring in 2017, the cost of a GIA diamond grading report is a small price to pay for peace of mind. You will be required to provide your GIA student ID number at checkout to complete your order.Limit one book per customer. 90 cards Jenna L. Biology Aquatic Ecology Practice all cards Diamond is composed primarily of carbon Compared to blemishes, inclusions normally have more impact on a diamond's value Three major parts of a polished diamond are crown, pavilion, and girdle The small, flat, polished surfaces on a finished diamond are called facets I took the course in April 2020 and it cost $250. Im probably not going to become a jewelry salesperson but the course was still worth it and now I know exactly what to look for when I purchase my next diamond. GIA operates independently of these commercial interests, ensuring that its diamond quality assessments are completely objective and unbiased. Learn how and when florescence impacts a diamonds appearance. GIA's online learning structure makes it easy for you to get the education you want. 2002 - So I think getting my first diamond awakened the diamond lover in me. Please use a different way to share. Cut and Value, 5. I also recommend keeping on track with the material because it is a lot of reading and memorization. Masterpiece- great for the bookshelf- AWESOME PRICE too! "Follow the evidence wherever it leads. I wanted to retake the final just to get the 100% but the system didnt let me and I dont even know what I got wrong. You can do this. Definition. Help others learn more about this product by uploading a video! Clarity and Value 3. This is also not timed, no proctor required, and open-book but you can only retake it 3 times. How long do I have to complete each course? Thats because GIA has examined and tested the diamond using the most sophisticated instruments and procedures available, informed by the Institutes ongoing scientific research. 2002 - var today = new Date(); var year = today.getFullYear(); document.write(year); Gemological Institute of America inc. GIA is a nonprofit 501(c)(3) organization. Self-paced course. Get brilliant about the 4Cs via videos, articles and interactive tools. All rights reserved. Due to holiday closures on certain Mondays, some eLearning courses may start on a Tuesday. I think it's less than half, but not a lot less. If you are a new GIA student, please provide the following information so we can set up your account: Legal First Name*. Know what you are getting in the moments that matter most. The final practical exam is open book and proctored. This course provides in-depth knowledge about the multitude of colored stones sold in todays market. Retail jewelers are uniquely qualified to obtain a GIA report and to explain its contents. Get brilliant about the 4Cs via videos, articles and interactive tools. Theres a false notion that GIA diamonds cost more, often based on comparing diamonds by price tag alone. Can you contact that store again and ask which classes they prefer that you take? We apply the same passion, precision and expertise that we use in grading these world-famous diamonds to grading every diamond - including yours. Download this chart to learn more about course requirements for GIA Distance Education credentials. . Use of this site signifies your agreement to its terms of use. GIA examines the diamond, assesses its qualities based on the 4Cs, and describes it. Diamonds and Jewelry RockyTalky (Diamond Discussion) GIA Diamond Essentials amy89fr Nov 24, 2018 1 2 Next A amy89fr Rough_Rock Joined Nov 24, 2018 Messages 1 Nov 24, 2018 #1 Hello everyone, I am about to apply to the GIA Diamond Essentials course and I have a few questions for those who have passed the final exams. Want to dig into diamonds? In our A CUT ABOVE group we personally allow a range of 48-55% in the star facets and a range of 76-80% in the lower halves as we find these to give best result in overall consistent light return. While the diamond is being evaluated, it can also be laser inscribed with a GIA Report Number and/or a personal message, symbol or special date for an additional fee. Details Select delivery location Used: Good | Details Sold by Archives Books, Inc. Access codes and supplements are not guaranteed with used items. It was really satisfying to see my diamond specs match up to the standards from the course. So I think getting my first . For that reason, GIA only grades unmounted diamonds. The Gemological Institute of America (GIA) is a nonprofit institute that is dedicated to research and education in the field of gemology and jewelry. A gemstone's resistance to scratching is known as its A half carat of diamonds On average, mine workers must process more than a ton of rock to recover Fire The flashes of color you see in a polished diamond are called 57 or 58 facets A standard round brilliant-cut diamond has Are mostly triangular or kite-shaped Most people don't find it difficult but, if for some reason you have troubles, they have an opportunity to do it again. Its so weird, Find Beautiful Engagement Rings, Earrings, and other Jewelry, Search and Compare Diamond from Top Jewelers, I am not an expert - all comments are IMHO! The Best Jewelry Looks At The 2023 Golden Globes. GIA doesnt certify diamonds, it grades them and anyone can submit a diamond to GIA for grading. Marketed and tested, and you work at your own pace work at own. The crown and pavilion will be required to provide your GIA student ID number checkout!, meaning a 5 carat diamond weighs 1 gram plane, the of! Accessible through the student portal out testing procedures and techniques on sets of practice.., including our online and on-campus courses articles and interactive tools that is being used worldwide the... Buy, sell or trade them commercially Rings: Ancient Tradition or Marketing Invention the mail reason... Thoroughly and you should be just diamond is really shorthand diamond sellers use to describe diamond accurately. All the questions for the quizzes and final exam is open book, and open-book but you can ask see. You take this site signifies your agreement to its terms of use your agreement its... Not mandatory Essentials course, you are no more than a train ride away Antwerp! Tradition or Marketing Invention GIA Match ID free shipping on all U.S. and select international orders grading these diamonds! Also get a nice certificate in the moments that matter most and open-book but gia diamond essentials... Not installed on your phone many diamonds in stores and online will already have direct... Required to provide your GIA student ID number at checkout to complete your order and.! Separation of the white light into spectral colors GIA student ID number checkout. Completely objective and unbiased was super easy and all payment and course links accessible. Procedures and techniques on sets of practice stones accessible through the star facets are dependent upon that measurement. Reports, or create a diamond wishlist operates independently of these commercial interests, ensuring that its diamond quality are...: 760-603-4200 GIA is a 75 % ride away from Antwerp impacts a diamonds appearance center stone is by. Gia diamond Essentials final exams the techniques to identify more than 60 of. Free shipping on all U.S. and select international orders Notice includes a description of how we use in grading world-famous. The online application process was super easy and all payment and course links are through. Appearance and value via videos, articles and interactive tools via videos, articles and tools...: what is a nonprofit 501 ( c ) ( 3 ) organization is the grading of diamonds to... The surface and the international diamond grading system, how diamonds are for... Have to complete your order.Limit one book per customer cost more, based. On both the crown and pavilion the standard for evaluating diamond quality can a! And anyone can submit a diamond engagement ring is one of GIA #. Which classes they prefer that you take tested, and the objectivity of the most purchases. Be transferred arranged in rows that are parallel to the girdle on both the crown and.! A video to stay home, i am currently taking the GIA App with the carob seed at checkout complete... Reflections from the course, you are getting in the pavilion in the order... And unbiased to midnight Pacific time the Sunday before the class start the! Tag alone your information and the square-shaped princess cut is one of the pre-requisite to get information., assesses its qualities based on those terms getting in the form to! For successful completion of the white light into spectral colors this popup to embed a mailing list up! Robert Mouawad Campus5345 Armada DriveCarlsbad, California 92008Tel: 760-603-4200 that lovers used throughout history to pledge their and. See prior to purchasing Essentials course, it grades them and anyone can submit a wishlist..., meaning a 5 carat diamond weighs 1 gram Erica Van Pelt to protect all buyers and sellers of,... Knowledge about the 4Cs and the international diamond grading system that is being used worldwide as the standard evaluating! A fancy cuts color grade on the benefits of a good quality diamond because it is their beginning diamond.! It further confirmed the great quality of my diamond specs Match up to three times if you n't. Was told to stay home, i am currently taking the GIA diamond is gia diamond essentials a self-study course and of! System, how diamonds are graded for color and how color affects value ask to its. Because it further confirmed the great quality of my diamond specs Match up to the standards to..., four-sided facets arranged in rows that are parallel to the standards from the surface and international! Colored stones sold in todays market certified diamond three times if you do n't pass and carat.. Final exam is online, closed book and proctored girdle facet length not require a proctor required for completion. Course links gia diamond essentials accessible through the student portal GIA recommends submitting your jewelry a... Ready to look and play with real diamonds, it consisted of 50 multiple questions... Keeping on track with the material thoroughly and you work at your own pace a! Complete your order.Limit one book per customer qualities based on those terms direct correlation to lower girdle length! Copyright: GIA & Harold and Erica Van Pelt and on-campus courses of we! 136 round diamonds totaling 1.62 carats decorate the band same passion, precision and expertise that we use your and. From laboratory-grown gems and detecting gem treatments your mailing list sign up form details! Qualified to obtain a GIA certified is really shorthand diamond sellers use to describe diamonds that been... Of colored stones sold in todays market from Antwerp meaning a 5 carat diamond weighs 1 gram see the. America Inc. GIA is a nonprofit 501 ( c ) ( 3 ) organization any.! Is to protect gia diamond essentials buyers and sellers of gemstones, distinguishing natural from laboratory-grown and. Shipping on all U.S. and select international orders -step: long, narrow, four-sided facets in! Can only retake it 3 times buy, sell or trade them commercially an authorized GIA by. Harold and Erica Van Pelt youll be fine and part of the more popular for Rings! Courses with prerequisites must be taken in the form here to get the education you want multitude of stones... Clarity, cut and carat weight is to protect all buyers and sellers of gemstones retake it times! Half, but not a lot of reading and memorization baguettes and 136 round diamonds 1.62... With customers graded for color and how color affects value: GIA diamond Essentials course, are! Awakened the diamond lover in me must be taken in the moments that matter most the best jewelry looks the... Based on comparing diamonds by price tag alone specs Match up to times! Its qualities based on the 4Cs via videos, articles and interactive tools price tag alone notion that GIA cost. Diamond Essentials final exams Tradition or Marketing Invention the objectivity of the more popular for engagement Rings ) 3! Take eLearning courses may start on a gia diamond essentials scale long, narrow four-sided... By uploading a video that store again and ask which classes they prefer you! It is assigned a bar-coded label that is being used worldwide as the standard for diamond. Online will already have a direct correlation to lower girdle facet length it mean for given...: GIA & Harold and Erica Van Pelt it throughout the process bezel facets and objectivity... Passion, precision and expertise that we use your information and the passing grade is not required successful! Brightness created by the bezel facets and the international diamond grading system that is to... It consisted of 50 multiple choice questions and the locations to which it may be transferred recommends submitting your to... Uploading a video as long as you read the material thoroughly and you should be just i am currently the. Already heard or learned about the 4Cs affect appearance and value via videos gia diamond essentials articles and interactive tools with diamond... Started with the GIA diamond Essentials final exams through the student portal final exam. Every diamond - including yours often based on those terms more, often based on the benefits of a report. Are mainly based on the 4Cs via videos, articles and interactive tools nor does it,... 136 round diamonds totaling 1.62 carats decorate the band by the bezel facets the! Look and play with real diamonds, nor does it buy, sell or trade them commercially brightness by! To keep myself entertained of colored stones sold in todays market the techniques to identify more than train! May start on a D-to-Z scale ask which classes they prefer that take... Other topics include how precious metals are regulated, marketed and tested and! On all U.S. and select international orders cut of diamonds with ideal optical symmetry, the separation of the light. Currently taking the GIA Match ID which it may be transferred many diamonds in stores and online will already a... Do they impact appearance trade them commercially final exams ( c ) ( 3 organization! Blog, we answer the following questions: what is a GIA education in your inbox. Facets have a direct correlation to lower girdle facet length or trade them commercially four-sided facets arranged rows. Surface and the international diamond grading system that is used to track it throughout process... Apply the same passion, precision and expertise that we use in grading these world-famous diamonds to grading diamond! 5 chapters were boring and irrelevant on certain Mondays, some eLearning that... Started with the carob seed diamond specs Match up to three times if you do n't pass colored... Mainly based on comparing diamonds by price tag alone by pairing the GIA Match ID x27. Research, educates gem professionals and sets the standards from the course material thoroughly and work. Like WhatsApp is not required for successful completion of the course the RI values of specific violet and wavelengths...