SAPPHIRE
Sapphire is a typically blue gemstone variety of the mineral corundum, an Aluminium oxide (Al2O3). Trace amounts of elements such as iron, titanium, chromium, copper, or magnesium can give corundum respectively blue, yellow, purple, orange, or green color.
The sapphire is one of the three gem-varieties of corundum, the other two being ruby – defined as corundum in a shade of red, and padparadscha – a pinkish orange variety. Although blue is their most well-known color, sapphires may also be colorless and they are found in many colors including shades of gray and black.
The International Gemology Association (IGA), is an approached worldwide organization specifically formed to benefit the Gemological industry.It has a concept of world wide network to develop a common language for promotion and consistent standards necessary to improve international communication.IGA provides direct access to the source for Gemstones and related information.IGA has given our industry just such an environment and the Association has worked diligently to accomplish its objectives: 
