Define diamond clarity.

• A. The assessment of internal inclusions and surface blemishes visible under 10x magnification
• B. The weight category
• C. The color grade
• D. The fluorescence level

Answer: (A)

Diamond clarity is the assessment of internal inclusions and surface blemishes visible under 10x magnification. The grade reflects the number, size, location, nature, and relief of these features, which can affect how light passes through the gem. In practice, a stone with no inclusions seen at 10x is considered high in clarity, and many stones are described as eye-clean if no inclusions are visible to the naked eye, even though minor inclusions may be detected under magnification. Clarity is separate from other properties like carat (size), color grade, and fluorescence, which describe different aspects of the diamond.