Gold for current delivery rose $10.20 an ounce, to $421.80, on the Comex.
Gold for current delivery in New York fell $3.80, to $360.70 an ounce.
Gold for current delivery closed up 50 cents, to $374.20 an ounce.
Gold for current delivery settled at $377.40 an ounce, up 60 cents.
Gold for current delivery in March fell $1.90, to $363 an ounce.
Silver for current delivery rose to $5.117 an ounce, from $5.103 on Wednesday.
The savings are substantial relative to the current $10 billion delivery costs.
Silver for current delivery rose to $5.269 an ounce, from $5.137.
Silver bullion for current delivery was quoted at $6.645, down from $6.978.
On the Comex, silver for current delivery finished at $6.114, down from $6.124.