ખોટો તો પણ ગાંઠના રૂપીઆ.

khōṭō tō paṇa gāṁṭhanā rūpīā.

Literally: Even if counterfeit, it is rupees from one's own pocket.
What it means: One's own child or family member, no matter how flawed, remains valuable and cherished.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.