OL Jewelry Network is the first company in China to focus on white-collar women's jewelry, diamonds, diamond rings, wedding diamond rings and diamond rings. Half cheaper than traditional jewelry stores, Italian designers customize personalized jewelry for you, which is worth the money and luxury is no longer expensive. ? From the market point of view, GIC is more authoritative. GAC diamond grading certificate, issued by China Gemstone Association. Responsible for the quality supervision and inspection of self-discipline products in the national jewelry and jade jewelry industry, and invite local jewelry associations (merchants) to cooperate and assist in product quality self-discipline. GIC mosaic diamond grading certificate issued by Dida Gemstone Testing Center of China Geo University. Mainly in identification, consulting, training, exhibition, production and processing, widely serving the society. At present, it has trained thousands of technical backbones and hundreds of senior appraisers for jewelry quality inspection institutions, production, processing and wholesale units all over the country, and has been praised as the "cradle of treasure education" at home and abroad. If you want to know more information, you can get it on OL Jewelry Online, or you can contact OL Jewelry Online customer service directly. I believe you can get a more perfect answer. Welcome to consult and order.