Karats
6K Gold

8K Gold

10K Gold

12K Gold

14K Gold

18K Gold

999S Fine Gold
What's Included
  • 7X Gold Testing Needles
⚠️ Gold Testing Acid Solution Required – Not Included
How To Use
  1. Rub the gold item on a testing stone to create a streak.
  2. Start with the lowest karat needle (6K) and apply acid to the streak.
  3. Observe the reaction: fading streak indicates lower purity, unchanged streak indicates at least that karat.
  4. Repeat with higher karat needles (8K, 10K, 12K, 14K, 18K, 999S) for precise identification.
  5. Clean the testing stone after each test to avoid cross-contamination.
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