1 troy oz of Gold = 31.1035 grams.

Current "Spot Price" of Gold ($1507 a troy oz) divided by 31.1035 grams = $48.451138 a gram.

Multiply the Kt mark by 4.16 to calculate the percentage of gold in a given item.

10kt x 4.16 = 41.60%

14kt x 4.16 = 58.24%

18kt x 4.16 = 74.88%

22kt x 4.16 = 91.52%

24kt x 4.16 = 99.84%

Example: 5 grams of 14kt gold.

5 x .5824 = 2.912 grams of Gold.

2.912 gm of Gold x $48.451138 = $141.08971

Gold-fill is similar.

Here's an example with 44 grams of 1/20 12kt Gold-fill.

1/20 of the overall weight is 12kt gold.

44 gm divided by 20 = 2.2 grams of 12kt gold.

12kt x 4.16 = 49.92% Gold.

2.2 gm x .4992 = 1.09824 gm Gold.

1.09824 gm Gold x $48.451138 = $53.210977 worth of Gold in this batch of scrap.

Current "Spot Price" of Gold ($1507 a troy oz) divided by 31.1035 grams = $48.451138 a gram.

Multiply the Kt mark by 4.16 to calculate the percentage of gold in a given item.

10kt x 4.16 = 41.60%

14kt x 4.16 = 58.24%

18kt x 4.16 = 74.88%

22kt x 4.16 = 91.52%

24kt x 4.16 = 99.84%

Example: 5 grams of 14kt gold.

5 x .5824 = 2.912 grams of Gold.

2.912 gm of Gold x $48.451138 = $141.08971

Gold-fill is similar.

Here's an example with 44 grams of 1/20 12kt Gold-fill.

1/20 of the overall weight is 12kt gold.

44 gm divided by 20 = 2.2 grams of 12kt gold.

12kt x 4.16 = 49.92% Gold.

2.2 gm x .4992 = 1.09824 gm Gold.

1.09824 gm Gold x $48.451138 = $53.210977 worth of Gold in this batch of scrap.