It probably refers to the gold content. Au being the scientific abbreviation for gold.
AU is the chemical symbol for gold.The 10 means the micron depth of the layered gold.If a watch has AU10 stamped on it it means it has been gold plated to a depth of 10 microns (around 0.010mm or 1/100th of a millimetre thick).
10 Karat Gold
10 Karat Gold
Gold
gold
Au is the symbol for gold on the table of elements. Au10 is probably 10k gold.
Au is the chemical symbol for Gold. Therefore, it means the ring is made of pure gold.
Gold
are you sure that is av and not posible au because the 79 element on the periodic table of elements au is gold
I had the same question. And there seems to be some contradiction in AU. I have found a maker of the name Archibald Ure a silver and gold smith from Edinburgh, Scotland 1700-1730. However, I don’t believe the earrings I have, and are marked 925 AU c, are from 1700s. I haven‘t found any other makers with the copyright AU yet.
Saturn, Its mean distance is 9.53 AU, where one AU (Astronomical Unit) is the earth to sun distance.
Stephen Au is 5' 10".
Au is the symbol for gold