Types of Gems: Sapphires, Rubies, Emeralds, and Amythysts. Sapphire:800-1000db Emerald:500-700db Rubies:950-1050db Amethyst: 800-1000db
2 Emeralds = 1 Ruby 2 Emeralds = 1-2 Amythyst 2 Emeralds = 1-2 Sapphire
Gems can be mined using a Gold Pickaxe on a rock/stone at a non-spawn island, such as Freeport,Fenwick, or Perth. You MAY get a gemstone. These require no level of mining, meaning you can mine it at level 0-10.