The phrase 'invaluable commitment' is correct and usable in written English.
You can use it to describe the dedication that someone has shown to a cause or task, especially if that commitment has been very impactful or significant. For example, you could say: "Their invaluable commitment to the charity enabled its success."
It's the invaluable soft skills (commitment, leadership, communication, teamwork) that you will get from this degree that will put you in a good position for just about anything.
We are indebted to the Dielmo children and their parents for their invaluable help and commitment to participate in the longitudinal study.
The Dissent Papers recovers these diplomats' invaluable perspective and their commitment to the transformative power of diplomatic writing.
My experience at Lucile Packard was invaluable and reaffirmed my commitment to children's health and health policy.
Bob's continued personal interest in the School over the years, as well as his unflagging commitment, have been invaluable to the School's growth and development.
The in vitro differentiation of embryonic stem (ES) cells has proved to be an invaluable model to study lineage commitment, because one can access and easily manipulate large quantities of early progenitor cells.
Geneva Call's experience in engaging with NSAGs and monitoring the implementation of deeds of commitment could prove invaluable in both the drafting and supervision of the ceasefire agreements suggested.
In a statement that played down the significance of the departures, the Climate Action Partnership said that "all three companies have provided invaluable assistance, expertise and significant commitments of time and resources" in seeking to advance climate legislation.
Delivering advice requires a small amount of time, but it engenders a sense of commitment that can be invaluable.
