Gold Tester 4 Stones Black Fingerboard Kit for Gold, Silver and

Readable Test Stand: This gold tester kit includes 4 black touchstones designed to receive the traces left by gold, silver, platinum, and other metals during an appropriate test, to more easily compare the visible marks without resorting to a bulky device Portable format: Each piece measures 7.70 x 4.50 x 0.60 cm, a compact size that fits easily in a jewelry case or a workshop drawer, convenient for purchases, resale, travel, and occasional checks of jewelry, metal pieces, or objects Reusable natural stone: The stone surface is intended for repeated rubbing as part of a gold test or silver and platinum control, with a simple structure to handle for users who want to observe and compare traces left by different metals Multiple Karat Control: For jewellery advertised as 9K, 14K, 18K or 24K, this touchstone serves as a support in a suitable verification method; it helps to deposit a clear comparison mark, without presenting the solutions or reagents as included in the batch Set of 4 for multiple uses: The four stones allow you to organize different tests, workstations or successive uses in jewelry making, collection, buying and selling of precious metals; the black color enhances the visual contrast of traces and facilitates observation during inspection