"most high quality" is correct and usable in written English.
You can use it to describe something that is of the highest possible quality. For example: "This art gallery has the most high quality sculptures from all around the world."
How do we ensure the long-term viability of UK creativity in a domestic production industry that gives our audiences what they value most – high quality, home-produced programmes?
Its glasses are promised to be some of the most high quality and high tech eye wear available.
Sure it's not the most high quality speaker you can find, but it sounds acceptable considering it's stuck inside such a small device.
While the current version only displays collections with titles that match search terms, the new version will index the full text of the pages included in the collection, tags and user ratings in order to display the most high quality collections by relevance.
This is a guest post by Philip Lindblom, the founder and CEO of the marketplace 1000designers that is gathering the 1000 greatest product and graphic designers in the world to build the world's most high quality marketplace for product and graphic design.
The fact that festival organizers, this year, have scheduled some of the most high quality sound-dependent, quieter acts in this space is beyond me.
If the cables aren't coded (and most higher quality cables are a plain color) then you need to look for a subtle but clear reference mark on the casing.
Use the most highest quality videotape available.
"U.S. Treasuries are still the most high-quality instrument out there," he told them.
The curing with salt and often sugar and spices can be dry, as in most high-quality bacon, or wet.
Most high-quality French wine is identified by its place of origin, rather than by the grape variety.
