# first water

> English word · Noun

## Definitions
1. The highest quality of gemstones, especially of diamonds and pearls.
2. The highest rank or quality or the greatest degree.

## Etymology
The term originated in the gemstone trade, where it was used to signify water-like clarity.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/first-water