Beside Taurus, sapphire is also associated with the zodiac signs Sagittarius and Pisces. Though traditionally the birthstone of April, sapphire in general is the modern birthstone for September. Sapphire also comes in a rare orange-pink variety called padparadscha, as well as star sapphires, which display six-rayed asterism. Still, the value of pink sapphire lies in its resemblance to ruby hence, the closer the pink is to the red of ruby, the higher the value of pink sapphire. In fact, corundum that is a shade less red than ruby is immediately called sapphire, that is to say, pink sapphire, which is the second most expensive of pink gemstones. Sapphire is corundum that comes in all colors but red, otherwise known as ruby. Though most popular in blue, sapphire also produces pink precious stones. A rather very rare variety, the pink diamond is the most valuable of pink gemstones, with a sale made in 2009 for $2.16M/carat. Like other diamonds, the pink rocks are the hardest of minerals, and boost of an extremely high refractive index, making the pink stones shine brilliantly. Though most popular in white, the diamond also occurs as pink precious stones.

Pink sapphire birthstone