Its simple really... do you count 10K gold ?? Its only 41.7% gold...14k is 58.5% gold... and 18K is 75%...
Gold is GOLD!
Silver is SILVER!
Might me easier to just tally your silver in grams *shrug*
Silver war nickle is worth $1.83 right now... Silver dime is $2.36...
But all of this is my humble opinion :-)