The phrase "a remarkable and unique" is correct and usable in written English.
It can be used to describe something that stands out due to its exceptional qualities or characteristics.
Example: "The artist's latest work is a remarkable and unique piece that captivates the audience."
Alternatives: "an extraordinary and one-of-a-kind" or "an impressive and distinctive".
Phyllis was a remarkable and unique woman who will be missed.
It is a remarkable and unique project, made possible by an unusual confluence of people, places, and events.
As Mr. Rubio has ascended in the ranks of Republican politics, Mr. Braman has emerged as a remarkable and unique patron.
I'd like to share with you what makes Johnson a remarkable and unique school, and why I am so proud to serve as its dean.
"The seminar, held each Monday night on the 14th floor of the grand Moscow University building, was a remarkable and unique phenomenon," said Prof. Edward Frenkel, who teaches mathematics at the University of California at Berkeley.
Fred Sanger was a remarkable and unique scientist, and with his passing on 19 November 2013 we have lost one of the founders of molecular biology.
It forms "a remarkable and almost unique work", one of the earliest pieces of food writing which offers a wonderful insight into the tastes of the ancient world.
From the beginning, he followed a very simple three part blueprint; (1) Seek out and hire the very best chefs in the industry, (2) Create a remarkable, authentic, and unique atmosphere for the customers, and (3) Hire people who care.
Boyhood has done well with five nominations, and perhaps that is reasonably what could have been expected, and for passionate partisan fans of this film (like me) no amount of nominations will be enough for this remarkable, and unique film, which is a kind of time-lapse drama, shot over 12 years, showing a boy growing up.
In a league where most managers last a year or two, Ferguson's twenty-seven-year tenure was remarkable and unique.
