Mini Portable Crystal Jewelry Tester Pen

High-Precision Diamond Detection
– Accurate gemstone identification with advanced thermal conductivity technology, instantly distinguishing diamonds from simulants like cubic zirconia or moissanite.
Portable & User-Friendly Design
– Compact pen-style tester fits in pockets or jewelry boxes, featuring a one-button operation for quick on-the-go verification.
Durable & Reliable Build
– Crafted with a stainless steel probe and ABS housing for scratch-resistant performance, ensuring long-term use in jewelry stores, pawnshops, or travel.
Wide Application
– Ideal for jewelers, collectors, and pawnbrokers to authenticate diamonds, sapphires, rubies, and other precious stones during purchases or appraisals.
Budget-Friendly Professional Tool
– Delivers lab-grade accuracy at a fraction of the cost, perfect for bulk buyers seeking affordable yet high-quality testing equipment.