Hello everyone. My name is Navneet Agarwal from Navneet Gems & Minerals, the marketing manager here and also a graduate gemologist from GIA Carlsbad, USA. In this video you will show you in 30 seconds how to detect diffusion treatment in most sapphires. br br Welcome to our channel today at Navneet Gems & Minerals. Before I forget, please click the subscribe button to not miss any videos from us in the future. With all your love we have reached 3000+ subsribers and our single videos have touched 300,000 views. So thank you. br br For this tutorial you will need a soft diffused light source with any translucent cloth. A tweezer and a loop to see close up if needed. br br Once you place the stone on the cloth you can start to make calls – if the sapphire is treated with diffusion treatment you will likely see a concentration of color on the edges of the stone’s facets like this stone here. However in this second sapphire without diffusion you will not be able to see any concentration of color on most facets. Let me give you 2 stones and let you guess whether latice diffused or not in the comment below: Number 1 stone: (write your comment here with the number 1 and your answer) and now Number 2 stone: (write your comment here with the number 2 and your answer). br br Thank you so much for watching this tutorial on detecting lattice diffusion in 30 seconds in most sapphires. Please share this video with your loved ones to check for diffusion with few easy steps at home – DIY. br br More for information about diffusion sapphire please read here: ... br br For more information about natural sapphires: br ... br br We also did a webinar on HPHT sapphires which can be read here: br ... br br or via WhatsApp: br +66 98 549 8500 br br Thank you for watching br br *********************** br br About the Channel: br br Welcome to Navneet Gems' youtube channel. br Navneet Agarwal is a GIA graduate gemologist from Carlsbad, USA. br Our company is 25 years in the wholesale gemstone business and our aim on our youtube channel is not only to sell gemstones. br br We aim to educate the public about the latest gemstone treatments, gemstone grading, types of stones, colors and quality of different Colored gemstones - precious and semi precious. All videos taken by Navneet Agarwal. br br We also aim to upload new videos as frequently as possible, but whenever we do, its surely something important. It may not be regular as Navneet is usually busy with production, sales, marketing, traveling so whenever he gets time he will educate the subscribers of our youtube channel. So please do subscribe to our channel if you are interested in gemstones and the new fascinating things that are coming in the market in the gems and jewelry business, our channel cannot be missed with such credible information.