કર્યું તે કામ ને વિંધ્યું તે મોતી.

karyuṁ tē kāma nē viṁdhyuṁ tē mōtī.

Literally: What is actually completed is work, and what is pierced is a pearl.
What it means: Said to emphasize that only a fully finished task counts as a real accomplishment.

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.