Which attribute is NOT listed as a baseline feature of all true gemstones?

• A. Durability
• B. Beauty
• C. Clarity
• D. Rarity

Answer: (C)

The main idea here is that some qualities are treated as baseline for most true gemstones, while others are not universal across all types. Durability and beauty are fundamental because a gemstone needs to hold up in wear and be visually appealing, which applies broadly to most stones. Rarity also tends to be a general factor because scarcity affects value across many gem types. Clarity, however, is not a universal baseline. It describes the presence of internal flaws or how transparent a stone is, and not all gemstones are valued or even graded for clarity in the same way. Some stones are naturally opaque or contain inclusions that are part of their character, and for many gems there isn’t a standard, comparable clarity assessment. That variability means clarity isn’t a baseline feature shared by all true gemstones, even though it matters a lot for certain stones like diamonds.