Not only blue
Sapphire comes in almost any colour except red (red corundum is ruby).
- Blue — the classic
- Pink and padparadscha — rare
- Yellow, green, colourless — fancy
- Star sapphires
Choosing a blue sapphire
A medium, saturated pure blue beats a very dark stone, and a good cut removes the window in the centre. At hardness 9 sapphire suits engagement rings and everyday pieces.