Diamond Selector II Gold Testing Kits Gem Pen Gemstone Jewelry r Tool,Portable Electronic Diamond r Pen Jewelry Selector LED(Black)

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💎 Don’t just guess—know your diamonds instantly!

The Diamond Selector II is a portable electronic pen designed to accurately identify real diamonds using advanced thermal conductivity technology. Featuring LED and audio indicators, simple calibration for various stone sizes, and a lightweight design with a carrying case, it offers professionals and enthusiasts a reliable, on-the-go solution for gemstone verification.