In Stock Gemmology Presidium ARI Portable Diamond Verifier Presidium 02258 €1,275.00 Identifies colorless diamonds against lab-grown CVD/HPHT diamonds and all types of moissanites, including newer "low conductivity" moissanites. For testing loose and mounted stones, including closed-set jewelry. Instant results in 3 seconds. Replaceable optical probe tip technology. Add to cart