WEBJan 7, 2015 · The Final Fantasy Carbuncle is typically represented as a blue, green, or teal squirrel-type creature with a red gemstone protruding from, or lying flat on, its forehead. . This gemstone is the prime attribute. The word carbuncle has been applied since antiquity to a number of red gemstones, such as garnet, deriving from Latin carbunculus ...