Traditionally, sapphire symbolizes nobility, truth, sincerity, and faithfulness. It has decorated the robes of royalty and clergy members for centuries. Its extraordinary color is the standard against which other blue gems--from topaz to tanzanite--are measured. For centuries, sapphire has been associated with royalty and romance. The association was reinforced in 1981, when Britain's Prince Charles gave a blue sapphire engagement ringt o Lady Diana Spencer.
Until her death in 1997, Princess Di, as she was known, charmed and captivated the world. Her sapphire ring helped link modern events with history and fairy tales. The sapphire belongs to the corundum group, the members of which are characterised by their excellent hardness. Indeed their hardness is exceeded only by that of the diamond – and the diamond is the hardest mineral on Earth. Thanks to that hardness, sapphires are easy to look after, requiring no more than the usual care on the part of the wearer.