This is a signet ring made with 925 silver and lab-grown diamonds. This price point is possible because it's silver. Rhodium plated 【Lab-Grown Diamond】Lab-grown diamonds are real diamonds. Lab-grown diamonds have the same chemical, physical, and optical properties as mined diamonds, and exhibit the same fire, scintillation, and brilliance. 【IGI (International Gemological Institute)】 Founded in Antwerp, Belgium in 1975, it is a gemological institute that is one of the most trusted in the world for grading jewelry, natural diamonds, and lab-grown diamonds, and has the largest number of branches worldwide. It has been at the forefront of lab-grown diamond grading, and currently holds the top share in the world. ・Approximately 29g ・Approximately 1.27ct used ・Due to the thickness of the ring itself, it is likely to fit fingers in the 21-23 size range, depending on swelling.