It means that the precious metal is 3 microns thick on the surface. A human hair is about that thick.
If you see the word micron on jewellery the substitute it for the words "not good enough to be called plated but I hope no one is smart enough to question it so I can sell it for more than it's worth"
Hope this helps you. Question everything.
What does lead comliant in jewelry mean
What does MNSN On sterling jewelry mean
Amp10k
This means that the jewelry is gold plated with 18 karat gold. You can get different kinds of gold in your jewelry.
does 14k kg meanin jewelry
3 microns is larger
A micron is 0.000001 metres if thats what you mean
Micron is usually used to mean a millionth of a meter, so it is not a weight
What does DB 3 925 CN mean
1 micron > 0.5 micron
0.5 micron.
10 micron.
Ofcourse 23 micron is thicker than 11 micron.
90 micron.
2 MICRON
A giga-micron is one billion microns. A micron is the informal term for a micrometer, or one-millionth of a meter. Doing some math, 10^9 - 10^6 = 10^3, or 1,000 meters.
A 5 Micron is more fine then a 20 Micron, It means, if a particle has a thickness of 1 micron. only 5 numbers of particle can be passed through a 5 Micron filter at a time while 20 numbers of Particle can be passed through a 20 Micron filters. the 5 Micron is more efferent to the 20 Micron.