Sapphires: Rubies and sapphires are related

Rubies and sapphires are related, both coming from the mineral species corundum. Discover how rubies differ and learn exactly what the standards are for these red beauties to find a special and high-quality stone. 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, chromium, vanadium, magnesium, boron, and silicon. What is a Sapphire Gemstone? A sapphire is a precious gemstone belonging to the corundum mineral family, known for its incredible durability, brilliance, and vibrant colors. Sapphires are born under immense pressure and heat, deep within the earth’s crust, formed over millions of years, shaped by volcanic activity, and brought to light through rare geological movement.