Sapphires comes in many colors. If the color is not stated, a sapphire is assumed to be blue. Sapphire is the birthstone for the month of September. The most valuable sapphire are shiny stones with the translucency necessary to let the light go through them.
Sapphires mass is heavier than diamonds, it is more dense. If you compare same weight diamond with Sapphire the Sapphire looks smaller.
It is rare to find a sapphire that has not undergone treatments to enhance color and fill cracks. It is accepted procedure in the jewelry industry to perform these treatments on sapphires.
The following are terms for fake sapphires: "Brazilian sapphire," 'Synthetic sapphire," "Lux sapphire," "Lynx Sapphire," "Water Sapphire."