Normally the label makes it clear if jewellery is not solid gold, only plated with gold.
Some plated jewellery will last for many years. See if the thickness is described in microns. Under average use you will wear away 1 micron every 2 years, so 10 microns should last 20 years. Rings suffer above average wear, while ear-rings last longer.
Take special note of these terms.
Rolled gold: originally a sheet of brass was placed between 2 sheets of gold, and they were rolled out until they merged, nowadays the term normally refers to electo-plated gold, often of good quality, but do check what the label says.
9ct back and front: a term which is no longer legal, but is sometimes seen on old jewellery. It means the item is plated
bangle means color or stupid
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
i have a bracelet which is stamped 925 on wax, what does this mean
it means that the Watch case make about 80% of silver
The stamp "925" indicates that the bangle is made of sterling silver, which is 92.5% pure silver. The number "188" is likely a manufacturer's code or unique identifier for the piece.
375 Gold filled usually means that the bangle has been made hollow with 9ct (375)_ is the hallmark for 9ct. Then filled with a less expensive material like silver or copper to add weight and strength but without the added cost of a solid 9ct bangle.
Think it is 333 or 8k. Gold,possibly swiss
10 micron thickness plating (usually gold)
-7
I assume you mean 1 millimetre. This is 1000 microns
I think FvS means Friedrich von Stetten. He made that for him