May’s birthstone, emerald, is aptly named the gem of spring. Its vibrant green color evokes a lush garden. In fact, inclusions in emeralds are sometimes called an internal “jardin,” the French word for “garden.” The most desirable emeralds range from bluish green to green with vivid color saturation.

Known for its majestic purple color, amethyst is the gemstone of choice for those born in February.

January’s birthstone, garnet, is known for its impressive variety of eye-catching colors, which can be almost any color of the rainbow. Garnets occur in green (demantoid and tsavorite), orange (spessartine), red (almandine and pyrope), and purplish red (rhodolite), plus a few rare garnets even change color under different types of light. But color is far from a garnet’s only attractive feature.

September’s birthstone is perhaps most known for the extraordinary sapphire ring worn by Kate Middleton, originally belonging to Princess Diana. Taking a cue from the British royals, celebrities like Penelope Cruz have fueled the colored gemstone engagement ring trend, with sapphire leading the way.

July’s mesmerizing birthstone was called “the king of precious stones” in ancient India. It remains a fitting title today.