This comprehensive ERAFINE at-home jewelry testing kit empowers you to authenticate precious metals with confidence and precision. Whether you're evaluating inherited pieces, shopping for vintage jewelry, or assessing scrap metals, this professional-grade testing solution brings laboratory accuracy to your fingertips. The kit includes specialized testing solutions for 10K, 14K, 18K, and 22K gold, plus platinum and silver testers, each housed in convenient 5ml bottles that provide enough solution for dozens of tests. The included premium 2x2 inch test stone offers a reliable surface for conducting accurate assessments, while the detailed instructions guide you through the testing process step by step. Each bottle features color-coded caps for easy identification, making it simple to select the right solution for the metal you're testing. This versatile kit is perfect for jewelry enthusiasts, collectors, resellers, and anyone who wants to verify the authenticity of their precious metal items before buying or selling. Compact and portable, you can take this testing kit to estate sales, flea markets, or jewelry shows to make informed purchasing decisions on the spot.