Garnet is a gem group that occurs in almost every color, including red, yellow, orange, green, umbra and even color-change gems. Garnets include pyrope, almandine, hessonite, spessartite, demantoid, tsavorite, Mali garnet and malaya garnet. They are typically untreated and most types of garnet are eye clean. Garnet stones are mostly affordable and make attractive jewelry. Some garnet types are available in large sizes and others are difficult to find in gems weighing 2 carats, such as rare, green tsavorite garnet.
Garnet is mined in places all around the world, but some types are only found in one or two places, such as tsavorite, which is found in Tanzania and Kenya. From this page, you can filter by garnet type, color, size, weight, size and other factors to find the exact garnet gemstones that you like.
I love GemSelect, personally. I browse their site almost daily to see all the new stones available. Their selection is pretty amazing. The quality isn't always the highest and the cut of the stones isn't always perfect. But for the price, and if you look hard enough, you can find a real gem, so to speak.