Coarse Fine Ceramic Stone

I purchased the coarse and fine ceramic stones on this website a long time ago and didn’t see them on the Wicked Edge Grit and Micron Order Chart. It looks like these stones are not supported by Wicked Edge anymore, but could you tell me what order they would be in if they were in the chart. Thanks.
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My experience was they fit in after the 1500 grit diamond stones.

I believe there is a grit comparison chart under the “knowledge base” tab.