KOWVOWZElectronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional

Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional

GTE Precious Metal Jewelry Testing Kit Gold Silver Platinum Test Acids Wooden Box 30X Eye Loupe 10K 14K 18K 24K Needle File Cloth Acid

2 Pieces Jewelers Loupe 30X 60X 90X Illuminated Jewelers Eye Loupe Magnifier Jewelry Magnifying Glass Loop with UV Black Light and Bright LED Light for Jewelry Diamond Gem Coin Stamp Rock (Black)