The ultimate tester for diamond fraud protection! The GemOro testerossa features new exclusive uv-f1 moissanite identification technology capable of detecting the widest range of the electrically conductive moissanite, including the new super-low electrically conductive forever one moissanite. -Identifies, detects and separates diamond from cz, moissanite and white sapphire -features new exclusive uv-f1 moissanite identification technology capable of detecting the widest range of the -electrically conductive moissanite, including the new super-low electrically conductive forever one moissanite -sleek ergonomic shape comfortably rests in and on your hand when held -intuitive finger grip pads for increased User-Friendliness and ease of use -LED stone illumination and UV fluorescence detection -precision retractable probe-tip with Enhanced durability -indestructible polycarbonate housing with molded rubber base for increased impact resistance If dropped -Fast warm-up time -user programmable talking voice alert in 9 languages: English, german, Italian, Spanish, French, Russian, mandarin Chinese, Japanese, Arabic or ringtone sounds -glowing light bar/ probe tip cone for quick stone identification green = Diamond, Blue = moissanite. adjustable GemOro test stone Magnifier attachment, loose stone holder, multi-voltage 100v-240v AC adapter with micro-USB power cord and a carbon-fiber style carrying case.