Possibly price a ring - to us it's valuable (8)
I believe the answer is:
precious
'it's valuable' is the definition.
(similar in meaning)
'possibly price a ring to us' is the wordplay.
'possibly' is an anagram indicator.
'a ring' becomes 'o' (letter resembling a ring).
'to' means one lot of letters go next to another.
'price' with letters rearranged gives 'preci'.
'preci'+'o'+'us'='PRECIOUS'
(Other definitions for precious that I've seen before include "Much loved" , "Very fastidious" , "Having great value" , "Valuable, treasured" , "costly" .)