First water

In the gemstone trade, first water means "highest quality".[1] The clarity of diamonds is assessed by their translucence; the more like water, the higher the quality. The 1753 edition of Chambers' Encyclopedia states "The first water in Diamonds means the greatest purity and perfection of their complexion, which ought to be that of the clearest drop of water. When Diamonds fall short of this perfection, they are said to be of the second or third water, &c. till the stone may be properly called a coloured one."

For the evolutionary history concerning the first water on Earth, see Origin of water on Earth.

The comparison of diamonds with water dates back to at least the early 17th century, and Shakespeare alludes to it in Pericles, 1607.[2]

Heavenly jewels which Pericles hath lost,
Begin to part their fringes of bright gold.
The diamonds of a most praisèd water
Doth appear, to make the world twice rich.

References
  1. "Definition of first water". Collins English Dictionary. Retrieved 7 December 2012.
  2. Per 3.2 M
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.