Best Gte Gold Testers in 2026

Professional Diamond Selector II will show real diamonds or fakes，Use the big/small switch to test diamonds，Makes an audible sound to easily distinguish readings.

Easy to use：Real diamonds make sounds and lights >= 9.Fake crystal, such as cubic zirconia (CZ), crystal, glass will not emit sound and light <9.

Support battery: support mercury-free alkaline environment-friendly high-performance battery，DC 9V battery x 1 (included)

Professional Diamond Selector II will indicate genuine diamond or fake，It is designed for quick, precise, and safe diamond testing.

Uses large / small switches for testing diamonds，Emits audible sounds to easily differentiate the readings,To determine the clarity of a diamond use 30X Magnifying,

Diamond Tester Pen and 30X Magnifying, each comes with its own convenient carrying cases,Portable electronic device for distinguishing real diamonds from other simulated stones.If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.

✔◇✔Complete tool for diamonds: the package comes with 1 piece of Jewelry tester and 2 piece of Small microscope , 3 pieces in total, which are complete and practical for you to test or observe diamonds, bringing you a good using experience

✔◇✔Clear screen design: these high accuracy diamond testers are designed with a clear screen, so you can get the useful data quickly; The item you are testing will be a true diamond when the data is above 9, and a true emerald crystal agate when the data is 7, saving your time to recognize

✔◇✔Multiple uses: the gold testing kit is suitable for testing various items, such as diamonds, jades, emeralds, crystals, agates, gems and so on, making it possible for you to distinguish and observe them clearly and easily

Easy to Use: Real Diamond will Emits sounds and lights >=9.Intuitive Design,Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.fast and safe,This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.

Portable:Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit into any purse or backpack.’s Diamond Tester Pen and 60X LED Lighted Loupe combo is a must have tool kit when you are going to a garage sale, flea market, swap meet, etc. Alternatively, its also a great tool to have when testing your own jewelry.

Backup Battery:An additional 20 LR1130 batteries are provided.and An additional 9V Battery 1 batteries

" This diamond tester is specially designed for true and false gemstone testing, not only fast and accurate, but also safe, used to distinguish real diamonds from other imitation stones, without adverse effects on gemstones, suitable for: masonry, crystal, agate, red Sapphire, Emerald and more, it is a great tool to test your jewelry it is small and portable, it is light in weight, it can be put into any handbag or backpack, and it will not put too much burden on you when using it"

Each diamond tester pen has a matching alkaline mercury-free environmentally friendly high-performance battery,so you don't need to spend extra effort to choose a matching battery.Please read the instructions carefully before using the professional diamond tester , and use this product correctly in order to test out accurate results

Application Range:Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office.fast and safe This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds. If you have any questions about use, please contact us. We will explain in detail. Professional equipment, the use method needs to learn slowly.

Easy to Use: Real Diamond will Emits sounds and lights >=9.Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.

Fast and safe : This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.

Uses large / small switches for testing diamonds.Emits audible sounds to easily differentiate the readings.Diamond tester is use battery powered for convenience.Requires 1 standard 9v battery, which is included.