September Birthstone — Sapphire, the Celestial Stone
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Sapphire, the September birthstone, is a variety of the mineral corundum prized for its vivid blue color. While 'sapphire' typically conjures deep blue, this gem actually comes in every color except red (which is classified as ruby). Fancy sapphires in pink, yellow, orange ('padparadscha'), green, and purple are increasingly sought after by collectors and designers.
Traditional Birthstone
Sapphire has been the traditional September birthstone for centuries, valued by royalty and clergy alike. Medieval kings wore sapphires as a symbol of divine favor and wisdom. The British Crown Jewels contain some of the world's most famous sapphires, including the St. Edward's Sapphire, believed to date from the coronation ring of Edward the Confessor in 1042.
Modern Birthstone
The modern September birthstone is sapphire in all its colors. Kashmir sapphires, found high in the Himalayas and mined only briefly from 1881 to 1887, are considered the finest ever produced, with a velvety cornflower blue. Major current sources include Sri Lanka, Madagascar, Myanmar, and Montana (USA). Heat treatment to improve color saturation is standard and does not significantly affect value.
Symbolism & Meaning
Sapphire symbolizes wisdom, virtue, good fortune, and holiness. In many traditions, sapphire represents the heavens; ancient Persians believed the Earth rested on a giant sapphire whose reflection colored the sky blue. Sapphire is associated with loyalty and truth, which is why it became the gemstone of choice for royal engagement rings, most famously Princess Diana's and now Catherine, Princess of Wales's 12-carat Ceylon sapphire.
Historical Significance
Sapphires were first mined in ancient Sri Lanka (then called Ceylon), and the island remains a premier source today. Ancient Greeks associated sapphire with Apollo and wore it when consulting the oracle at Delphi. Medieval clergy wore sapphires to symbolize heaven, and the papal ring (Ring of the Fisherman) was traditionally set with sapphire. Napoleon gave Josephine a sapphire engagement ring in 1796, and sapphires have remained a symbol of romantic commitment ever since.
September Birthstone Gems
Gift Guide
Sapphire is the ideal September birthday gift and the traditional gem for 5th and 45th wedding anniversaries. Blue sapphire rings, inspired by royal engagement rings, remain perennially popular. Padparadscha sapphires offer a unique pink-orange option for those seeking something distinctive. Montana sapphires provide an American origin story with unique teal and green-blue colors.
Care & Handling
Sapphire is extremely durable at Mohs 9, making it an excellent choice for daily-wear rings and all jewelry types. It is resistant to scratching by almost everything except diamond. Ultrasonic and steam cleaning are generally safe for heat-treated sapphires. Diffusion-treated or fracture-filled sapphires should be cleaned only with warm soapy water.