The Platinum Conversion Table & Melt Value Calculator
This tool will find the melt value of your .850 , .900 , .950 Platinum Jewelry or .999 Fine Platinum Bullion.
Just enter the Platinum Spot Price, then select the weight type and enter the Platinum weight, then press "enter" or click the " calculate" button.
You can enter the weight in Grains, Pennyweights, Grams, Ounces, Troy Ounces , Pounds , Troy Pounds , Kilo's , Taels (China) and Tolas (India).
The calculator subtracts the weight of the non - platinum alloy , then converts the remainder to troy ounces, then it multiplies the troy ounces times the spot price you entered in the first step. Click Here...
Platinum is the heaviest of the precious metals, weighing almost twice as much as karat gold. Ten tons of ore must be mined to produce a single ounce of platinum and it takes months to process the platinum ore into pure platinum.
In the United States, most platinum jewelry contains either 90% or 95% pure platinum. By comparison, 18 karat gold is 75% pure and 14 karat is 58.33% pure gold. Most of the platinum used in jewelry is composed of 90% platinum and 10% iridium or 5% ruthenium, which makes it much harder than pure platinum.
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