Sapphire is the birthstone of September and the anniversary gemstone for the 5th and 45th year of marriage. Symbolizing sincerity and faithfulness, the sapphire is an excellent choice for a center stone in an engagement ring. Sapphires were worn by kings and queens for good luck and are considered sacred and regal. The lovely dark blue color is believed to symbolize heaven as well as promote peace and happiness between lovers and good health.

Blue sapphires can range from a very light blue to a dark green or purple blue. The most valuable sapphires found are medium to medium dark blue in color. This gemstone is part of the corundum species and can be found in other colors such as pink, green, orange, purple, and yellow sapphires.