When purchasing a diamond, color is one of the most important factors. The Gemological Institute of America (GIA) has established a evaluation system for diamond color that ranges from D, which represents the most colorless grade, to Z, which indicates a distinctly yellowish hue. Understanding these categories can greatly affect your diamond's bri

To study a conventional D4 you may either go ahead and take variety at the highest, or at The bottom, from the dice depending on which type you buy. The way to tell should be to browse whichever variety on the dice is vertical. Other types of D4 aren’t technically Tetrahedrons like the a person pictured below and so don’t have to have to acquir