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.
Rarity can be based on a couple of things -- mainly, color and carat weight. Diamonds come in almost all colors: red, pink, yellow, champagne, white, green, blue, brown and black. The availability to obtain a specific color is what determines rarity as well as the uncut and cut size of the diamond.