Blue Sapphire Gemstone Information:- Sapphire it may be the most popular colored gemstone. It is certainly the most versitle blue gem. Sapphire is hard, durable and available n a range of colors from cornflower blue to midnight blue. But sapphire is more than blue. excellent gemstones in white, green, yellow, orange,pink and purple. The most valuable sapphires have a medium intense, vivid blue color. The best sapphires hold the brightness of their color under all different types of lighting.