The metal conversion chart below will help you determine the amount of metal needed to create a piece of jewelry in a different metal. To use, weigh the piece of jewelry. Then find the present metal along the top of the chart and look down the column to find the factor for the new metal you desire to make the piece of jewelry. Then multiply the current weight of the jewelry by this factor.
For example: a customer brings in a 14k white gold ring and would like the same ring made in Platinum. The ring weighs 6 DWT. Go to the chart and look down the l4k White column until you come to Platinum. The factor is 1.708. Multiply 6 x 1.708 = 10.248. The ring made in platinum would weigh 10.248 DWT.