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Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α- Al 2 O 3) with trace amounts of elements such as iron, titanium, cobalt, lead, …

Sep 3, 2023 · Sapphire is one of the most popular gemstones for jewelry of any kind. Sapphire's hardness is second only to diamond among natural gems. It also has no cleavage planes. …

Learn the ins and outs of sapphires, from mineral composition to origin, color, meaning, and more. What Is a Sapphire? Sapphire is a precious gemstone comprised of the mineral corundum and …

Blue sapphires range in size, and large blue sapphires are more readily available than large rubies. Explore sources, gemological research, and the role of gems in history. Gemological …

Mar 5, 2025 · Sapphires are super cool rocks that come in many colors and forms, known as the different types of sapphire. Blue sapphire, padparadscha sapphire, and Montana sapphire are …

Feb 24, 2025 · Sapphire, transparent to translucent, natural or synthetic variety of corundum (q.v.; aluminum oxide, Al2O3) that has been highly prized as a gemstone since about 800 bc. Its …

Sapphire is one of the big three of colored gemstones (the other two are ruby and emerald). This durable gemstone captures jewelry buyers with its practicality and aura of romance. Click here …

Detailed gem and jewelry information guide about the corundum blue gemstone sapphire: information & pictures.

4 days ago · The Chase Sapphire Preferred ® card is one of the best travel rewards cards on the market. Its bonus categories include travel, dining, online grocery purchases, and streaming …