Diamond testing lab services at GJAEDU are driven by a passion for gemological excellence. Every stone is tested meticulously using globally recognized techniques to ensure accurate grading and authentication. GJAEDU also offers in-depth training courses where students learn the art of gemstone evaluation. From understanding the 4Cs to identifying treatments and simulants, their programs prepare individuals for roles in retail, trading, and appraisal. Whether you're learning or submitting diamonds for testing, GJAEDU delivers perfection through science, skill, and sincerity.