Currently, platinum trades at $1,007.50 per ounce, as of 9 a.m., compared to gold, which trades at $2,773.72 per ounce. Year to date, platinum prices are up by 2.00% and gold prices are up by 34.23%.

While a comic like "Action Comics No. 1" can sell for millions, this is the exception. Still, here's the criteria a valuable ...