3 calculators in this category
- Gold Karat & Alloy Mixing CalculatorFTC Jewelry Guides, 16 CFR Part 23Karat is a ratio, not a grade: it is the number of parts of gold in 24 parts of metal by weight. This calculator converts…
- Scrap Gold & Silver Value CalculatorTroy weight (1 troy oz = 31.1034768 g); karat marking per FTC 16 CFR Part 23This calculator separates the two numbers that get confused when you sell jewellery: the melt value , which is the market value…
- Ring Blank Length CalculatorUS ring size scale; ISO 8653 ring sizingCut a ring blank to the inside circumference and the finished ring comes out at least a full size small. The metal on the…
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