How much does a Ruby cost? A basic guide to Ruby grading and wholesale valuation.

Join Charles Lawson and Michelle Wu as their work through the wholesale pricing system developed by the Asian Institute of Gemmological Science (AIGS) that works with the GemGuide pricing guide. If you would like to learn this system you can join the AIGS program and get a 5% discount with the following code through their website. AIGS Course 5% Discount Code: EYCL09 AIGS Course Website: https://www.aigsthailand.com/Gemology... We used the September/October 2025 issue of GemGuide for this video so prices are relevant for this period. You can find the GemGuide by GemWorld at the following link: https://www.gemguide.com/the-gemguide/ Thanks to World Corundum for hosting us. You can get in touch with Jeffery with the following contact details: World Corundum Jewellery Trade Center Building 40th Floor 919/471 Silom Rd, Bangrak, Bangkok 105000 Thailand. Email: worldcorundum @yahoo.com Website: www.worldcorundum.com