Move towards the Newfields building and look for this item on a table on the building’s front deck. Once you hop out of your car, head up the stairs and cross the road to your left. From there, travel to Lestallum, where you will find the first Glass Gemstone hidden in Final Fantasy 15. You’ll need to play through the game to Chapter 3, where you gain access to Duscae. How to Find Glass Gemstonesįinding Glass Gemstones is actually a little tough. Having trouble finding cooking ingredients? Check out our guide on how to fish in Final Fantasy 15 to learn how to use Noctis’ primary skill to catch AP and cooking ingredients. You should also take a look at our best Ascension skills guide to find out which abilities are worth picking up. We already showed you how to complete A Better Engine Blade by showing you all the Rusted Bit locations in Final Fantasy 15.