Welcome to the International School of Gemology Online Courses and Education with online and in-person classroom learning opportunities. As part of the Global Claims Associates insurance services company, we are the world’s finest and fastest-growing gemological education organization that offers world-class training in gemology, jewelry appraisal, and jewelry litigation expert witness at the world’s lowest tuition rate. We are the innovators in affordable, quality distance education in gemology and jewelry appraisal based on our certified insurance industry education delivery system. Courses have been rated the top worldwide for quality, affordability, and ease of learning. Please choose from one of our quality education programs or professional certificates, or get more information about careers in gemology from the drop-down menu.
EXCELLENT Based on 33 reviews Ashley Irwin2025-04-14Trustindex verifies that the original source of the review is Google. I love this place Natalie Vaughan2025-04-12Trustindex verifies that the original source of the review is Google. Over the past several weeks, Robert James has done an outstanding job educating me on a variety of gemstones—including ruby, tanzanite, and emerald—through his Journey Thru Gemology webinar series. His presentations are not only informative but also interactive, with dedicated time for guest questions and a strong emphasis on providing accurate, up-to-date information. I'm genuinely excited about the knowledge I'm gaining and look forward to continuing this journey. I encourage you to join me in exploring the fascinating world of gemstones in the weeks to come! Garrett Dee2025-04-11Trustindex verifies that the original source of the review is Google. I'm midway through this course study and I've learned Soo much. As a jeweler/stone cutter and someone who is in the gem trade I've really needed this knowledge to help maintain the integrity of my business and most importantly I just want to know what is what and where it came from. I don't always want to have to rely on taking someone else's word at a gem show or while overseas not speaking the native language. This type of School and study is certainly providing the knowledge I need to be better and at a cost I can afford. Thank you Janet Young2025-03-28Trustindex verifies that the original source of the review is Google. Loving the weekly journey through gemstones. Excellent refresher Lisa Bies2025-03-24Trustindex verifies that the original source of the review is Google. So much information, pictures and details about the stones. Robert is a great instructor to listen to and shows lots of examples. Lana Powell2025-03-21Trustindex verifies that the original source of the review is Google. I highly recommend the ISG for anyone looking to gain a deep and practical understanding of gemology. The RGA course are well-structured, informative, and perfect for both beginners and experienced professionals. Robert James is an exceptional tutor - his wealth of knowledge, clear teaching style, and dedication to his students make learning both engaging and rewarding. The hands-on approach and real-world applications provided have been invaluable to my gemstone cutting and selling business , D&L Sapphires, even from the other side of the world. ISG is truly a perfect choice. rvrwokr12025-03-21Trustindex verifies that the original source of the review is Google. I have been learning so much from the ISG since 2016 when first discovering them. The courses are easy to understand, the instructor (Robert James) makes learning fun, and affordable, and is always ready to help every student with whatever they need. Top notch school ! I encourage anyone who wants a professional learning experience to give them a try. Danuta Hackett2025-03-21Trustindex verifies that the original source of the review is Google. One of the best decisions I ever made was to become a Gemologist Appraiser with the ISG. I looked forward to each course, I gained understanding and confidence with each week and was so grateful for my education. I love being able to help others identify their family heirloom jewelry, or their garage sale treasures, or write insurance appraisals to insure their wedding ring set, or even work in a jewelry store as a sales person. The variety of opportunities for a gemologist appraiser are endless! This "Gypsy Gemologist" who travels and offers these services has made a wonderful lifestyle for me! I highly recommend the ISG ! Enri badillo2025-03-21Trustindex verifies that the original source of the review is Google. Excelente curso, es prácticamente la única manera de obtener un buen aprendizaje en línea. Robert es un gran maestro. Solo necesitarás un buen nivel de inglés.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
The ISG has received “Best Online Gemology School” rating by two major jewelry organizations. Click the image to learn more.
Frequently Asked Questions
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About the ISG
Learn more about the founding and credentials of the ISG education programs including recognition and certifications.
Meet Your Instructor
Learn the history and confirm the credentials of your instructor, Robert James FGA, GG. Get the complete story of the founder of the ISG
I stumbled upon the ISG when I felt defeated after knowing I couldn’t do the extremely expensive GIA courses. Through RJs courses you get book knowledge, but what I think is more important, you get his personal knowledge. Through him I figured out how to get my AJP through the GIA for free, and then received a scholarship to eventually pursue my GG through them. But the ISG is what is going to make me a gemologist, and a damn good appraiser.
I want to express my deepest gratitude to you for creating such interesting and full of knowledge course. ” Litigation and expert witness course” is a great addition to all my modest experience and will help me in future become more confident in litigation process. It was a great pleasure to be an ISG student and I hope to stay as active member ISG alumni community.
I appreciate you so much Robert. I too went to GIA and even took a few International Gem Society courses and I love the value placed on ethical selling that ISG places compared to every other course I’ve taken. I feel like being able to source ethically is hugely what was missing from my gemology training and credentials and I was able to supplement that with your program. Thank you for what you do for the field and community of gemologists everywhere.
Our graduates report that our program is superior to the GIA Graduate Gemologist program on many levels. We offer courses the GIA does not offer, and provide you with a world-class education at a fraction of the cost of the GIA. We urge you to compare our programs and tuition costs.