Sterling silver is 92.5% silver ~ Pure silver is 99.9% silver.
Fine Silver is Pure Silver. Sterling Silver is an alloy.
Fine silver can be tested to be 99.9% pure silver metal . Sterling Silver is an alloy - which is a mixture of metals. Sterling is 92.5% silver, and the rest is other metals - mostly copper. The addition of Sterling Silver it has drawbacks such as tarnishing due to the copper. Fine Silver is .999% pure and has a nice bright silver color which makes it tarnish resistant.
Pure silver is more valuable then sterling.
