True or false: Large, high quality diamonds are graded much more thoroughly than small, low quality ones?

True or false: Large, high quality diamonds are graded much more thoroughly than small, low quality ones?

• A. TRUE
• B. FALSE
• C. Not sure
• D. Cannot be determined

Answer: (A)

Grading thoroughness scales with the stone’s value. When a diamond is large and high quality, the potential price difference between adjacent grades is substantial, so graders devote more time and use more precise methods to ensure the grade is accurate. They pull out higher magnification and scrutinize each attribute carefully: color under controlled lighting, clarity with a microscope to catch tiny inclusions, and cut by examining exact angles and proportions. They also check polish, symmetry, girdle thickness, culet, and often fluorescence with extra attention. This deeper scrutiny protects reputation and buyer trust for premium stones and reduces the risk of misgrading. In contrast, smaller or lower-value stones usually undergo a more streamlined assessment because the financial impact of minor grading differences is smaller.

Grading thoroughness scales with the stone’s value. When a diamond is large and high quality, the potential price difference between adjacent grades is substantial, so graders devote more time and use more precise methods to ensure the grade is accurate. They pull out higher magnification and scrutinize each attribute carefully: color under controlled lighting, clarity with a microscope to catch tiny inclusions, and cut by examining exact angles and proportions. They also check polish, symmetry, girdle thickness, culet, and often fluorescence with extra attention. This deeper scrutiny protects reputation and buyer trust for premium stones and reduces the risk of misgrading. In contrast, smaller or lower-value stones usually undergo a more streamlined assessment because the financial impact of minor grading differences is smaller.