I see in many Indian websites (including banks) silver bars being claimed as 24 Karat pure.
Probably they mention it as such because people in India know so much about gold and that
24 Karat gold is pure gold and that ornaments are made of 22 K gold. 22 K gold is 91.67% pure.
But the purity of silver is not measured in Karat (or carat); it is measured in percentage.
(1) Ultra Fine Silver: This is 99.99% Silver. Denoted as 999.9. Need an example? The beautiful Canadian Silver Maple Coin.
(2) Fine Silver: This is 99.9% Silver. Denoted as 99.9. Example? The American Silver Eagle coin. It is 99.93% Silver and 0.07% copper.
(3) Sterling Silver: This is 92.5% Silver. Denoted as 925. In Sterling silver, 92.5% of the object
by weight is silver and 7.5% will be another alloy, usually copper. Usually, jewelry and silverware
are sterling silver.
(4) Coin Silver is 90.0% Silver. Denoted as 900. Coins minted in the US like quarters, dimes and half dollars minted before 1965 had 90% silver content.
I have only one question: We buy a lot of silver vessels in India. Are they 925 Silver and if so are we charged as such or or we given 925 (or less) Silver content and charged for 99.9%?
I don't know.