The Gemlogis VISTA differentiates between earth mined and potential CVD / HTHP diamonds. It is the first hand-held device that is designed to test loose stones and diamonds that have been mounted with a closed back.

Features: Test loose or mounted stones Quick identification of potential CVD/HPHT stones Testing Range: > 0.02 Colorless to near colorless gemstones (D-J) Long lasting rechargeable lithium battery Compact and light carry Includes AC adapter One-Year Manufacturer's Warranty