Wiktionary
n. The personal value of an object, derived from the personal memories associated with it.
Usage examples of "sentimental value".
I notice your sister sent you the stuff with the sentimental value.
Been there millions of years, slagged within a few per cent of breaking up completely, a ring of debris scattered round its orbit, that orbit itself changed significantly, causing everything else up there to have to shuffle round to accommodate the alteration, a small bombardment of debris across three bands, some chunks narrowly missing several items of infrastructure with more than sentimental value and others setting off automatic planetary-defence laser batteries, a cascade of satellite destruction that has yet to be put entirely right.
Sardined into his carelessly packed satchel, among the jeans, boxer shorts, aloha shirts, and compatible couples of socks, was a single purple stocking that, except for some dubious sentimental value, would have been ash-canned ages ago.
Insurance can never replace things with sentimental value, can it?
Master Gregorian understands that you have come into possession of a certain item which has some sentimental value to him.
Corky had been too wise to request its return, leery that the police might suspect that it had sentimental value to him.
Instead, he returned it to its sheath and then to a pocket not only because it might serve him well again, but also because it now had sentimental value.
I mean, after all, it has sentimental value, what with being your pa's and all.
Since it appears to be gold, and may have a sentimental value, I thought I ought to give it to you personally.
There was no time to retrieve anything of sentimental value, he had seconds only to gather the bare essentials: maybe not even that.