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.
Pink and red diamonds are fairly rare colors, but have increased in numbers since the opening of the Argyle mine in Australia. Pinks often have a purplish tint. Like brown diamonds, these are colored by lamaelle of uncertain composition (the greater the number of lamaelle, the darker the color). The composition of the coloring agent is probably very simular since diamonds have been found that have both pink and brown lamellae.