IMPORTANT & USEFUL INFORMATION.
When you are measuring the depth of a stone to the metal, you MUST always measure from the Table of the stone, never the metal.
I know that this seems redundant, but I've seen some major accidents at this point in my career.
Just for your information:
The "Mohs Scale of Hardness" on these two stones is 9.0 out of 10. While a Diamond is 10.
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