Garnet (January): Garnets are known for their rich red color, though they can come in a range of colors. Red garnets are relatively affordable compared to other gemstones.
Amethyst (February): This purple variety of quartz is beloved for its vibrant color and clarity. While high-quality amethyst can be valuable.
Peridot (August): Peridot is known for its unique green color. It's not as commonly found in jewelry as some other gemstones, which keeps its price relatively moderate.
Emerald (May): Emeralds are cherished for their rich green color. High-quality emeralds, especially those without many inclusions and with a deep green color, are highly valuable.
Ruby (July): Rubies are considered one of the most valuable gemstones, especially those with a vivid, deep red color known as "pigeon's blood."