FOR DIAMOND COLOR COMPARISON AND GRADING
Featuring Exclusive ColorLast™ Technology!

Professionally color grade diamonds in seconds, only from GemOro! 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 to master diamond color standards using the GIA grading scale. Exclusively available from the leading lab specialist in CZ master set production for nearly two decades, GemOro Superior Instruments.

- Largest range of reference available: E, F, G, H, I, J, K, L, M and N comparison stones.
- Featuring proprietary ColorLast™ Technology.
- Laser inscribed color ID on each stones table for easy sorting with a 10X loupe.
- Unique protective storage case with built-in grading tray and hydro hinge auto-opening locking cover with leatherette carrying pouch.
- Includes solitaire ring stone holder set for comparing mounted stones.
- Lifetime Limited Warranty against color change.

0.50ct 10 Stone Set