DiamondView can be used to observe what in diamonds?

• A. The characteristic terrace and riser growth sectors
• B. Color zoning only
• C. Surface fluorescence only
• D. Inclusion chemistry

Answer: (A)

DiamondView uses ultraviolet light to reveal growth-related features inside a diamond. The most distinctive things it shows are the growth sectors—the step-like terraces and risers that form as the crystal builds. These terrace and riser patterns are a direct visual record of how the diamond grew, and DiamondView is especially good at making them stand out because UV light highlights differences in how different growth zones refract and fluoresce.

So, the reason this is the best answer is that DiamondView’s purpose is to expose these internal growth features, which are not simply about color zoning or surface fluorescence alone. In contrast, inclusion chemistry involves analyzing the chemical composition of inclusions, which isn’t what DiamondView is designed to visualize. While you may notice various fluorescence effects or color patterns in some cases, the defining, diagnostic feature revealed by DiamondView is the characteristic terrace and riser growth sectors.