MG is the manufacture of the clasp The Co. name is MG Ltd. of Korea the make thousand of different styles of clasp, this is the only thing the MG marking stand for and nothing else!! You can search the Co. to confirm. Hope this helps.
What are these markings
It means the ring is made out of 14 karat gold.
It's not a common marking used in the US but yes it means gold. 52.5% is gold.
925 is a standard marking for Sterling Silver, thus making it a silver ring, not gold.
585 is an equivalent marking for 14k gold (real gold, not plated)
311035.768
Is mg real gold.
375 is the marking for 9 carat gold. Usually vintage European will have this marking.
This marking means that the piece is gold plated. The 12K refers to purity of the gold. The 00/15 means that the gold is 15 per cent of the total weight.
It was stolen, recovered, then resold
that would be the manufacturers mark.
It means that thats where it was made
10 mg gold
A 375 marking is a gold marking; it indicates 9K gold. You can find this by multiplying .375 by 24 (since there are 24 karats in pure gold). Visit the link below for more details about gold markings.
The 833 marking on gold signifies that it is 833 parts pure out of 1000. Translated to karats this would be 20kt, a popular purity used in Portuguese jewelry.
14 Karat Heavy Gold Filled(plated).
It means the ring is made out of 14 karat gold.
Gold and Diamond Mining