Chelsea filter for gem testing by

Easy to brings and need more using cost

Si sabes utilizarlos, es funcional

Still learning how to use, but it is a very nice optic with case

This product is exactly what is described. Used to see if the specimen/gem is coloured with chromium. Can be used to identify genuine natural vs synthetic (or simulant) gems, such as emeralds and rubies. Happy with this purchase.

The Ade Advanced Optics Chelsea Filter is an outstanding piece of professional equipment, earning every one of its five stars. As a tool essential for quick and reliable gemstone identification, its performance is flawless, but what truly elevates this purchase is the excellent overall package. Firstly, this filter is priced well for the professional quality it delivers. You receive an accurate, reliable filter without the exorbitant cost often associated with specialized gemological instruments. Secondly, the included nice case provides robust protection, ensuring the delicate optics are safe whether you're working in the lab or in the field. The case is compact, sturdy, and adds to the professional feel of the whole kit. The filter itself provides sharp, clear resolution, allowing for precise observation of color reactions critical for distinguishing natural, synthetic, and treated stones. If you work in jewelry or gem identification, this filter is a highly valuable, durable, and affordable addition to your testing toolkit.