Appreciator (noun)

1. A person who recognizes the value or quality of something and expresses admiration or approval.
2. One who is expert in a particular art or field.

Origin:

Late 17th century from appreciate, on the pattern of words such as administrator.

Examples:

1. She was a true appreciator of fine art.
2. He was an appreciator of good wine.
3. The appreciator of literature gave a thoughtful critique of the book.
4. The appreciator of music gave a glowing review of the concert.
5. The appreciator of fine cuisine gave the restaurant high praise.