The number "928" on your gold necklace is likely a marking to indicate the gold purity, which is usually measured in karats. In this case, "928" likely means that the necklace is 22 karat gold, indicating that it is made up of 91.6% pure gold.
It most likely means the percentage of gold in the material.
It most likely means the percentage of gold in the material.
It means it is 14 k gold.
928 refers to the purity of the metal used to make jewellery.
Depends on the the type of chain and if it is made with gems or what style.
Again, it depends on the style, if it has gems or stones, chain if it is solid or hollow.
I am not able to understand your question properly. I am assuming that you want to know the significance of 928 used in jewellery. Answering that question, it refers to the quality of silver used in the making of that particular jewellery piece.
928/1
928 =92800%
It is: 928 = CMXXVIII
1000
928 / 2 is equal to 464.