New from Gemlogis, the Vista Pro Natural Diamond Segregator is the first portable CVD/HPHT Diamond tester designed for testing larger pieces of jewelry with or without the open-back mountings. The testing range is from 0.01ct to 12.00ct, and from D Color to M. The Vista Pro is compact, easy to carry, and comes with an AC adaptor along with its long-lasting rechargeable lithium battery. 4.75" x 7.25"