The category with the highest number of workers in 2011 comprised the 21.4 million office and administrative support occupations, which had average earnings of $2,843 per month, $34,120 per year or $16.40 per hour.n 2011, food preparation and serving related occupations were the lowest-earning category, earning an average monthly $1,785, which equaled $21,430 per year, or $10.30 per hour.
Another factor that affects a diamonds's apparent color is the color of the mounting itself. Yellow gold makes slight amounts of yellow in a diamond less obvious, while white metal mountings make the color in yellow diamonds more apparent.
There are two different kinds of these color diamonds: treated blue diamonds and natural blue diamonds. Itâs remarkable that blue diamonds are actually found in mines with their beautiful tone, but the reality is that nature is responsible for these stonesâ stunning hue. So when it comes to the real thing, whatâs the cause of the color? All it takes is a trace amount of boron to absorb red light for a diamond to be blue.