IdiomDaily LifeFrench

Le dernier carat

Meaning: The very last moment; the absolute limit.

Literally: The last carat

Example: “Il faut rendre le dossier vendredi, dernier carat.” — The file has to be in by Friday, at the very latest.

Origin: The carat is the jeweler's smallest unit — a fifth of a gram for gemstones, and one twenty-fourth of the whole for the purity of gold, so that 24 carats is pure and nothing lies beyond it. The last carat is therefore the final increment available, with no margin left after it.

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