Unless you get a certificate declaring it 99.9999% pure silver, don't use it.
Jewlers use sterling silver which is a blend of nickle, copper, and silver.
Nickle is poisonous, toxic, you drink enough, you die.
Drink a little it might just destroy your kidneys and liver.
As 99.9999% is expensive, anyone selling it will obvious want to brag about it.
Just order your silver rods from Sota, they are pretty good.