Intuitive Design - Our diamond tester features LED lights and audio indication. The LED indicators illuminate when testing diamonds and provide an alert before touching metal. Easy to Use - Simple operation for fast results, with no professional required. The green indicator confirms real diamonds. Portable Design - Lightweight and credit-card size for easy handling. Suitable for testing on PU bags and on a testing platform. Multi-Purpose - Delivers fast and accurate diamond tests suitable for multiple sectors, including gardening, jewelry, education, and more. Use Scenarios - On-site verification in jewelry stores, pawn shops, markets, or at trade shows to confirm a stone’s authenticity before sale or purchase. - Educational settings such as gemology or jewelry-making classes to demonstrate testing methods and outcomes. - Home hobbyists and collectors verifying stones brought from vendors, repairs, or settings for quick, reliable results. Key attributes at a glance - Function: LED and audio indicators for clear, immediate feedback during diamond testing. - Compatibility: Designed for testing diamonds in PU bags and on a testing platform. - Size: Credit-card style and lightweight for portable use. - Material and performance: Compact, durable design delivering fast, accurate results without the need for trained personnel.