Class ring how to determine gold content and value ...
Dec 24, 2011· 10k/24k is % pure gold. So if it weighs 20 grams it would have grams of pure gold (). There are grams in an ounce so /= .2676 ounces of pure gold. .2676x1609 (spot price) would be 431 in melt, then multiply what you expect or bottom line, say 75% and 323 is you bottom line.