Looks like a love letter to The Colonel's Bequest, not that I mind though :) That was my first ever Sierra game purchase!

Finally. Been waiting for this. The game looks amazing.

Wishilisted for now! No income this year, or else I'd send the asking price to the dev asap! It's the thought that counts?

Purchased! Been waiting for this to come out on GOG.

Pretty much. The dev was on an episode of a game dev discussion podcast I've been watching, and a lot of those adventure games of that era (including CB) were explicitly mentioned as influences.
Also relevant: a review by PushingUpRoses: https://youtu.be/f8bdlagJsZA

EDIT: Oops, podcast link is now correct!

It is good to see that this game is on GOG now.

The soundtrack by Dan Policar is also available on Bandcamp:
https://dantheband.bandcamp.com/album/the-crimson-diamond-original-soundtrack

It was recorded with a Roland MT-32!

I was just about to link that. Roses is my favorite when it comes to adventure games.

That said, despite her glowing review this one ain't for me, I dislike text parser games and was never a fan of the Sierra games in general. I enjoy listening to fans like Roses talking about them much more than playing them.

Well, at least in this one, the worst of the more notorious "Sierra trademark" gameplay elements have apparently been removed or softened.

I already got it on itch.io otherwise I would be picking it up for sure. It was a great time. Hopefully you all enjoy your time with it as much as I did.

I got to play this one on other platforms (but I bought it here as well). I definitely recommend it if you enjoy adventure games with a text parser. A lot of care went into this one and it shows. There are a couple of weaknesses, since some of the scenes are easily missable (they aren't mandatory. however you can lose some interesting details this way), and at least once or twice you can get dialogues you shouldn't be able to unlock because you lack the pre-requisite knowledge, spoiling some details.

If you can look past that, this one was pretty interesting and despite not being terribly complex, it made the process of gathering clues and putting them together feel very rewarding and fun.