800.545.6566
www.riogrande.com
Sharing your passion for making jewelry.
Products. Service. Know-how.
GemOro CZ Master Set Pro
™
GemOro CZ Master Set Pro
™
800.545.6566
www.riogrande.com
Sharing your passion for making jewelry.
Products. Service. Know-how.
For Diamond Color Comparison & Grading
Featuring Exclusive ColorLast™ Technology!
Instructions & Warranty
1. After removing the CZ Master
Set Pro™ from its p
acking
materials
,
l
ocate
t
he
four (
4)
ribbed finger grips on the front
and rear sides of the case.
2. Position your thumbs on the
front finger grips and your
index fingers on the rear finger
grips.
3. While holding the case by the
finger grips, slide a thumb
over and on top of the thin
white rectangular safety locked
opening button that is located
between the front finger grips.
4. Carefully press the button with
your fingernail and the lid will
slowly open.
5. When closing, carefully and
firmly hold the case by its finger grips and slide one of index fingers over the top of the lid and press it closed until the
lock snaps into place with a click.
6. Each stone is laser inscribed on the stones table with its specific color grade. If sorting is required, use a 10X loupe to view
the grades.
7. To color grade a diamond, simply place it in the middle of the grooved tray, positioned with the table (flat part of the
stone) down at a 45° angle while laying the table of the stone against the front of the groove.
8. For best results, always use a task light with daylight illumination when color grading.
9. By process of elimination, lay the master stones next to the diamond until you are able to visually match the color to the
diamond.
10. Store the CZ Master Set Pro™ in its case with the lid closed at normal room temperature. Never expose it to extreme heat
and/or UV radiation.
