For diamond color comparison & grading
(DALLAS) - GemOro Superior Instruments, a leading laboratory producer of CZ master sets for diamond color comparison and grading, introduces its new generation CZ Master Set Pro™. The revolutionary new CZ master set features the exclusive ColorLast™ Technology. Each stone in the precision CZ Master Set Pro™ is treated with GemOro’s proprietary ColorLast™ Technology to ensure permanent color saturation.
It is expertly hand graded by professionals to diamond master color standards using the GIA grading scale and is the largest range of reference available including E, F, G, H, I, J, K, L, M and N comparison stones in both 1.00ct and .50ct diamond sizes.
The set comes in a protective storage case with built-in grading tray and leatherette carrying pouch and includes solitaire ring stone holder set for comparing mounted stones. The set comes with a Lifetime Limited Warranty against color change.