September, like many months, has a much wider array of birthstones than one might imagine. However, September is alone in having six different birthstones! These include peridot, zircon, agate, moonstone, sardonyx, and perhaps the most popular, sapphire.

Every piece of jewelry you own is precious in some way, but there are actually only 4 gemstones that are classified as precious. What are they, and what do they mean?