If you are thinking "what the heck is Spinel?" you're not alone. Spinel is a naturally occurring gemstone. Exhibiting extraordinary brilliance in a wide range of beautiful colors Spinel's durability is great for everyday wear. For most of human history it was thought to be sapphire,after all it comes from the same regions and has similar colors. It is set apart from other colored gemstones by its unique dazzling sparkle.