Depth proportion: In trying to quantify a gem’s proportions, reference is commonly produced to depth share. This is calculated by using the depth and dividing it from the girdle diameter (or normal diameter, in the situation of non-round stones). The appropriate range is usually 60–eighty%. In conclusion, gemstone clarity is https://gemstonesuppliers89799.blogzag.com/61016523/not-known-details-about-gemstone-grading-system