10K Plumb White Gold Alloy set with a 5mm Star Sapphire Cabochon

10K Yellow Gold set with a Round Brilliant 3 mm Moissanite J-K Color.

*This demonstration shows the viewers how to use only the 14K Gold Testing Acid Solution.

The 10K Acid Solution contains mostly Hydrochloric Acid and from years of doing this test I have found from the suppliers is that 10K SOLUTION is to be avoided, because its pretty much useless to Copper, as Copper is insoluble in the HCL solution.

Using the 14K Solution the streak will fade to brown if it is under 14K Purity. The time it takes is very fast.

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