The Professional Diamond Tester Pen by Siziviki is a high-precision tool designed for gemstone identification and diamond authentication. This tester, powered by battery, features a digital display and adjustable length for versatility in use. Made of durable plastic, this lightweight tool weighs 3.52 ounces and measures 5.31 inches in length, 0.87 inches in width, and 1.57 inches in height. Ideal for professionals in the jewelry industry, this gemstone detector offers precise and reliable results for various testing needs.
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