3X Gold Testing Needles. Select the appropriate needle (start with 10K). Repeat with 14K and 18K for accurate comparison. ⚠️ Gold Testing Acid Solution Required – Not Included. Rub the gold item on a testing stone to create a streak.
Gold Testing Needles Set 12K 14K 18K 20K 22K – Jewelry Gold Tester Tool
Repeat with higher karat needles (14K, 18K, 20K, 22K) for accurate comparison. Select the appropriate needle (start with the lowest karat, 12K). 5X Gold Testing Needles. ⚠️ Gold Testing Acid Solution Required – Not Included.