If your birthday falls in September, you're in luck—your September birthstone color is famously blue, thanks to the beloved sapphire. But there’s also an alternative in the form of lapis lazuli, which offers a very different blue that’s rich, opaque, and full of character. Both stones belong to the same blue family, yet their appearances, origins, and the science behind their colors are as distinct as they are fascinating. Let's explore the story of the birthstone color for September, focusing on the different shades each gem offers and the reasons behind their hues. The Many Shades of Blue in Sapphire When people think of the color of September's birthstone, most…