Pink Sapphire | Pink Variety of Corundum
Stone Description
What Is Pink Sapphire?
Pink sapphire is a light to medium-toned, red to purplish-red variety of corundum, a crystalline aluminum oxide (Al₂O₃). The same mineral family as ruby, its pink color is caused by trace amounts of chromium. The depth of saturation depends on how much chromium is present: less chromium = pink, more chromium = ruby.
Historically, pink sapphires and rubies were not differentiated, particularly in Eastern traditions. It wasn't until the early 20th century, when Western gemology established pink as distinct from red, that the term pink sapphire gained recognition. Today, the boundary between ruby and pink sapphire is drawn at the point where a gem appears masculine red rather than feminine pink when viewed with the unaided eye.
Sources and Colors
Pink sapphire’s documented history has been blurred due to its previous categorization under ruby. Traditionally, the Himalayan region, Myanmar (Burma), and Sri Lanka were the only known sources. But in the 1990s, the gemstone world was forever changed by a major sapphire discovery in Madagascar, with stunning pink sapphires among the find.
Today, other notable sources include:
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Tanzania
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Kenya
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Sri Lanka
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Myanmar
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Madagascar
Stones from Africa often exhibit an orange secondary hue, while Asian stones may carry a bluish undertone—both lending a unique character to the gem’s rosy palette.
Durability and Desirability
With a Mohs hardness of 9.0, pink sapphire is one of the hardest colored gemstones available, making it ideal for engagement rings and everyday wear. It is the birthstone for September and a symbol of luck and love for those born under Gemini, Pisces, Sagittarius, and Taurus in the Zodiac.
Given its natural rarity, especially in sizes above one carat, the market has accepted routine heat treatment to enhance color and clarity. However, unheated pink sapphires, when verified, command a significant premium, often double the value of their treated counterparts. Stones over three carats are exceptionally rare and highly collectible.
Conclusion
Whether delicate blush or fiery fuchsia, pink sapphire radiates emotional energy. It is a gemstone of romance, passion, and individuality—bridging the gap between softness and strength. A favorite of modern brides, collectors, and connoisseurs alike, pink sapphire offers a captivating alternative to the traditional and an invitation to express color with confidence and elegance.
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Hardness: 9
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RI: 1.768-1.772
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SG: 3.95-4.03
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Gem DNA: Al2O3 Aluminum Oxygen (color is due to trace impurities of Cr(Chromium))