Master CZ Color Grading Set These sets are made up of 1 CT CZ's which are individually selected by certified gemologists. Every stone is guaranteed not to change colors for 2 years. E, G, I, K, M set (5 stones 1ct size) These sets are made up of 1 carat diamond size cubic zirconia that are individually selected and graded by certified gemologists. Special care is given to ensure that each stone is neither on the low nor the high end of the color chart and that it is distinctly and equally apart from the two adjacent stones. They are guaranteed against color change for 2 years. D, E, F, G, H, I, J, K, L, N set (10 stones 1ct size) These sets are made up of 1 carat diamond size cubic zirconia that are individually selected and graded by certified gemologists. Special care is given to ensure that each stone is neither on the low nor the high end of the color chart and that it is distinctly and equally apart from the two adjacent stones. They are guaranteed against color change for 2 years.
