Alfa Mirage Precious Metal Tester GKS-300

See right through the most deceptive fakes. Did you know that advanced counterfeiters often coat cheap metals (like lead or copper) in a thick layer of real gold? Standard electronic pens and testing acids only scratch the surface, allowing these "deep fakes" to pass as authentic. The Alfa Mirage GKS-300 uses the foolproof science of water density (hydrostatic weighing) to instantly calculate the true purity of your gold and platinum all the way to the core. Engineered in Japan, it is the ultimate desktop truth-teller for jewelry collectors and precious metal investors.

Why You’ll Love It

• Defeats Heavy Plating: Because it measures the overall density of the object, it immediately exposes items that are plated in real gold on the outside but filled with worthless metal on the inside.

• Verify the Manufacturer's Stamp: Never take a "14K" stamp at face value again. The digital display instantly reveals the true karat (from K9 to K24) and Platinum purity (600-1000 & %), letting you know if a piece is under-karated.

• Scrap Gold Averaging: Have a pile of broken chains and rings? You can place a small batch of scrap gold into the water tank to get an instant average purity reading for the entire pile.

• Everyday Precision Scale: When you aren't hunting for fakes, this compact machine doubles as a highly accurate, standard digital gram scale and a general densimeter for your other weighing needs.

Important Testing Limitations (Please Read)

To ensure you get the perfect tool for your needs, please note that because this machine relies on water displacement (density), it CANNOT test the following items:

• Hollow Jewelry: Water cannot enter the hollow spaces, which will completely skew the density reading.

• Jewelry with Gemstones: Stones have different densities than metal. (All stones must be removed prior to testing).

• Metals with Identical Density: It cannot distinguish metals that share the exact same density as gold (such as Tungsten).