blue gold
Noun
Meaning
An alloy of gold with gallium or indium, having a greyish or slightly blue colour.
(informal) fresh water, in situations where it is rare or hard to obtain.
Source: en.wiktionary.orgExamples
Indeed, models like the Venice Moonphase EmeraldVenice Moonphase Blue Gold, to mention a few, are aesthetically satisfying, functional, and stylish.