Presidium OTI All-In-One Diamond Tester Prop 65 - Carbon followed by medium flow

followed by medium flow

sweat soldering

All other grades are cadmium-free

extending the Wubbers Oval Mandrel Collection

each clasp includes a safety mechanism for secure wear

Presidium OTI All-In-One Diamond Tester Prop 65 - Carbon followed by medium flowThe Presidium OTI All In One Diamond Tester combines dual optical and thermal testing technology into a single probe, delivering fast, reliable diamond authentication for professional jewelers and gemologists. This versatile instrument distinguishes natural diamonds from lab grown diamonds, moissanite, and common simulantsincluding glass, sapphire, and cubic zirconiawhether the stone is loose or mounted in any jewelry setting. With a resistive