I am currently the Digital Coach for the City of London and the West, within the London and Midlands Region. My role in a nutshell is to coach our leaders on sustainable banking whilst making the lives our of customers easier.
(There is also genuine color-change sapphire which mimics alexandrite, as well as color-change garnet that can be a real fooler.). The first thing to do is check the refractive index of the stone, since each material has unique optical properties.
The Standard For Blue Sapphires. For a sapphire is to be called âblue,â its secondary colors (e.g. green or purple) must not account for more than 15% of its color. Sapphires that have secondary colors in greater quantity would be classified as greenish blue, purplish blue, violet, etc. These are known as âuniqueâ or âfancy coloredâ sapphires.