GemTrue manufactures precision testing equipment and professional tools for the global diamond and jewelry industry, including advanced diamond testers.
GemTrue is a leading manufacturer of professional tools and equipment for the diamond and jewelry industry. Established in 2008 by Gary Peckham and Judy Zhu under the manufacturing parent company Shenzhen Dikai Industrial Co., Ltd. (commonly known as Dikai Tools), the brand quickly grew to international recognition as a standard for precision and reliability.
Providing precision testing equipment, GemTrue's product lines include advanced diamond and moissanite testers, synthetic diamond detectors (CVD/HPHT), digital gem scales, loupes, tweezers, and premium display boxes. Trusted by jewelers and gemologists globally, GemTrue integrates continuous innovation and strict quality control into all its measurement instruments to ensure accurate stone identification.
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You can view or download the instruction manual and calibration chart directly from our platform. Refer to your specific model's page for available documentation.
Turn on the device and allow the built-in circuits to warm up. Once the 'ready' lamp illuminates, use the level meter volume switch to adjust the meter in accordance with the stone size and room temperature, following the provided calibration chart.
Advanced GemTrue testing models, such as the APEX 5-in-1, are designed to identify natural diamonds, moissanite, cubic zirconia (CZ), glass, and lab-grown synthetic diamonds (CVD/HPHT).
You can reach their customer service team by emailing sales@gemtrue.com or by using the contact form on their official website (gemtrue.com).