he grading and evaluation standards of rubies are mainly based on 1T and 4C: Şeffaflık, Renk, Açıklık, Kesmek, and Carat. 1. Şeffaflık: refers to the degree to which a gemstone allows visible light to pass through. In the visual identification of rubies, transparency is generally divided into five levels: şeffaf, yarı saydam, yarı saydam, yarı saydam, ve opak. […]
