Blue Sapphire - Princess Diana's RingThe name of the gem "Sapphire" comes from the Greek word sappheiros, which in turn comes from the Hebrew sappi, which translates to "blue.” According to ancient legend, the stone was named after Sapphirine island in the Arabian Sea.

Sapphire is the gem variety of the mineral corundum and is second in hardness only to diamond. Although sapphires come in a rainbow of colors, blue is considered the most valuable. Sapphire is said to imbue its wearer with poise, endurance and strength and to help distract from hardships and troubles.

Sapphire is considered a symbol of power, fidelity, chastity and modesty. In medieval times, the sapphire was called "the bishop's stone”; people believed that it represented the highest spiritual values.

According to the book of the great Exodus, God Yahweh gave Moses the Ten Commandments engraved on tablets of sapphire. In the Middle Ages, the sapphire was revered as a symbol of sanctity and inviolability of government, and thus richly decorated the crowns and other regalia of kings.