- Very compact and portable: fits in the hand and goes wherever you work, including jewellery shops, pawnshops, and trade fairs. Always ready to authenticate diamonds, gemstones or moissanite on the go. - Accurate authentication: reliably distinguishes real diamonds from fakes. Safe for testing loose stones, with clear LED indicators and audible alerts to confirm results and avoid misidentification. - Practical PU case and test platform: includes a durable PU case for protection and transport, plus a stable test platform that improves accuracy and ease when testing loose stones. - Adjustable calibration for versatility: Easy Calibration adapts to stones of different sizes, suitable for a range of gemstone sizes and delivering precise results every time. - Use scenarios: in a jewellery shop for quick verification during customer consultations; in a pawnshop for on-site evaluation before purchase or appraisal; at a trade fair to demonstrate capability and reliability to clients.