This course provides basic and essential knowledge of colored stones with a focus on some of the main stones seen in the jewelry stores such as ruby, sapphire, emerald and other important stones. Students will appreciate the language of colored stones that they can use to help them close any sales opportunity. you will learn also about the powerful role of gemstones' colors and they relationship between the value of a stone so that you will have a better understating why two sapphires for example are different in the value. You will appreciate the unique characteristic of popular colored stones. You[i1] will learn about the 4Cs, the color, clarity, cut and carat weight and they affect a gem’s value. This course will be an opportunity for you to get a head of all the candidates who are applying for a job as you have the necessary skills to be a successful sales person. This course won't cover diamond but will cover only colored stones and their varieties, species and groups and the characteristic of some of them and the differences. At the end of this course, you will be entitled for a certificate from UDEMY and it will be your first step in the jewelry industry.