The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details:
https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is $300 $250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
Shoulda just called Clay, or at least gone to his forum.
That's where the answer is anyway.
You know, that ACTUALLY looks a lot like contamination from the sides of the jaws... Have you been using those a lot at minimum angles? Take a look at the base of your vise, and see if the coating is ground off. If it is, that's probably aluminum on the plates. That would just be a VERY odd spot for the diamonds to wear off, the ends tend to be the LEAST used bits of the plates.