Leviticus 27:12

And the priest shall value it, whether it be good or bad: as thou valuest it, who art the priest, so shall it be.

Cross-reference

Leviticus 27:14 applies the same priestly valuation process to dedicated houses, extending the principle here.

Leviticus 27:23 prescribes priestly valuation for dedicated fields, with a different calculation based on years to Jubilee.

2 Kings 12:4 references money from personal vows, similar to the valuation of vowed animals here.