Hey there. I'm actually tried an Audioquest Vodka and was totally unimpressed for sound quality, so I'm not sure that I would try the Diamond. The problem with Audioquest is they use such a small gauge (it was 30awg on my 2 meter Vodka), so the sound comes across thin and bright.
I know this is stretching your budget ($599), but I would probably go for a Nordost Heimdall 2 HDMI for audio quality (and make sure to burn in for about 250-300 hours).
If you look at usaudiomart, there's a guy selling a 0.6 meter Wireworld Platinum 7 HDMI for $325. Some people have reported that it's awsome, but I tested the Silver Starlight 7 HDMI and it wasn't the absolute best in audio. I don't know if the pure solid silver of the Platinum makes any difference, but it uses 2 x 26awg wires for the main HDMI signal conductors which can cause timing issues because the length of those two wires could vary.
I know this is stretching your budget ($599), but I would probably go for a Nordost Heimdall 2 HDMI for audio quality (and make sure to burn in for about 250-300 hours).
If you look at usaudiomart, there's a guy selling a 0.6 meter Wireworld Platinum 7 HDMI for $325. Some people have reported that it's awsome, but I tested the Silver Starlight 7 HDMI and it wasn't the absolute best in audio. I don't know if the pure solid silver of the Platinum makes any difference, but it uses 2 x 26awg wires for the main HDMI signal conductors which can cause timing issues because the length of those two wires could vary.