Properties: 1. This diamond tester has a very compact design and helps you to tell the difference between a real diamond and a fake diamond. 2. This tester is supplied with a PU housing and a small test platform for holding loose stones. 3. LED light and audio result display. 4. Easy calibration for stones of different sizes. 5. Easy to use, even for a beginner. 6. A green indicator will appear when the stone is a real diamond. There is a continuous hum if the user accidentally touches metal rather than stone. Specification: Material: plastic Color: Shown as pictures Size about. 16 * 4 * 2.1cm/6.3 * 1.57 * 0.83 inch Battery: 9V battery (not included) Weight: 160 g Type: jewelry tool Package list: 1 * diamond tester 1 * manual 1 * test platform

?Portable design? Diamond tester for a quick, precise and y diamond test. Thanks to lossless testing, the process is simple and precise. The tester is light, compact and easy to transport. ?Easy to use? Easy to use, even for beginners. The green indicator is shown when the stone is a real diamond. A continuous humming sound will be heard if the user accidentally touches metal rather than stone. ?LED display? This tester is supplied with a PU housing and a small test platform for holding loose stones. LED light and audio result display. Easy calibration for stones of different sizes. ?Precise Diamond Tester? This diamond tester has a very compact design and will help you tell the difference between a real diamond and a fake diamond. ?Versatile? The tester has a very compact design, ideal for buying jewelry, buying diamonds, selling real estate, auctions, etc. The g tones must be clean, dry and at room temperature.

Best Sellers Rank: See Top 100 in Arts, Crafts & Sewing. : B08MPTPDBK. Manufacturer: Zyyini. Product Dimensions: 7.48 x 3.15 x 2.36 inches; 11.75 Ounces.