Blue sapphire belongs to the mineral species corundum. It can be a pure blue but ranges from greenish blue to violetish blue. The name “sapphire” can also apply to any corundum that’s not red and doesn’t qualify as ruby, another corundum variety. There are not just blue and red sapphires. Sapphires can come in colors of violet, green, yellow, orange, pink, purple and intermediate hues. These sapphires are called the “fancy sapphires”. They can, also be parti-colored sapphires that shows a combination of different colors.