Scot Hull has posted a review of the Audioquest Diamond ($25/foot), Vodka ($85/foot) and Cinnamon ($235/foot) Ethernet cables. His conclusions:
“With all of these improvements, across all of these cable changes, I want to emphasize that the improvements were never egregious. Yes, I believe that sound quality improved. Yes, I felt that the improvements were marked and in some ways obvious. But we’re not talking a “new amp” or “bigger speakers” kind of change. That’s in-your-face (great for ABX testing). This was way more subtle than that. This was more like a better fitting shirt.”
You can read the full review here.
You can find links to more reviews of Audioquest Ethernet cables here.