A pink sapphire is a type of sapphire that is pink in color. Sapphires are typically blue, but they can also be other colors, such as yellow, green, or pink. Pink sapphires are typically less valuable than blue sapphires, but they can still be quite valuable depending on their quality. Rubies are also a type of sapphire, but they are red in color. Rubies are typically more valuable than sapphires of other colors, including pink.