I have a white gold ring stamped 750 HG with a diamond. The dimond is real. I filed the ring shank and it still tested 18kt. gold
HG on rings typically stands for "heavy gold" or "high-grade gold," indicating that the ring is made of a high-quality gold alloy with a significant gold content. It is a stamp commonly found on gold jewelry to signify its value and quality.
Indium-Mercury
hectograms
Hg
Indium-Mercury
760 mm Hg is the standard barometric (atmospheric) pressure. It is the pressure giving a pillar of mercury (the elemental abbreviation of mercury is Hg) that is 760 millimeters (mm) high.
Mercury
. Mean intraabdominal pressure was 6.5 mm Hg (range 0.2-16.2 mm Hg).
Hg could refer to hectogram, a measurement unit which is rarely used outside of school mathematics.
Hg could refer to hectogram, a measurement unit which is rarely used outside of school mathematics.
80 mm Hg