MMtwo
Ideal_Rock
- Joined
- Sep 20, 2009
- Messages
- 4,538
Not sure if this is the right spot, but for fun, do you want to try color grading diamonds?
https://www.gemsociety.org/diamond-color-sorting/
I got a 50%, the average 39%
https://www.gemsociety.org/diamond-color-sorting/
I got a 50%, the average 39%
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