Blue Sapphire Gemstone 18K White Gold Plated Ring

Blue Sapphire Gemstone 18K White Gold Plated Ring Size 6 SAPPHIRE is a precious gemstone formed from a mineral called corundum. Blue Sapphires get their color from titanium and iron trace elements. On the Mohs scale of mineral hardness, Blue Sapphire rates 9 out of 10, so it is a very durable gem. The word 'sapphire' comes from the Greek word sapphirus, which means blue. Sapphire, particularly the deep blue variety, has been associated with and beloved by royalty for centuries. Medieval kings wore sapphires, and many believed the gems would protect them in battle.