[Exceptional Craftsmanship]: Crafted with precision, this Diamond Color Grading Set includes stones securely fixed within a robust , covered by a glass lid and cushioned with sponge. It's designed to safety and integrity without the need to open the lid. [Versatile and Practical]: Ideal for both professionals and enthusiasts in the jewelry field, this tool serves as an indispensable accessory. It's also a thoughtful gift for friends and family who appreciate jewelry craftsmanship and design. [User-Friendly Design]: To access the stones, gently open the lid at a slight angle. Use tweezers to carefully adjust the stones, minimizing the risk of displacement or damage, ensuring precise and safe handling during evaluations. [ Construction]: Constructed from high-quality iron, this Diamond Color Scale Box is designed for wear resistance and durability. Its sturdy build guarantees long-term, repeated use in various settings, from workshops to classrooms. [Portable and Multifunctional]: and compact, this Jewelry Stone Tools set is easily portable, making it perfect for travel. It's versatile enough to be used as a reference tool in jewelry sizing, educational purposes, or as essential equipment in jewelry making. Colour:Silver Material:iron Package Contents: 1 x Diamond Color Grading Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.