Which term denotes a very small included crystal that looks like a dot at 10X magnification?

Which term denotes a very small included crystal that looks like a dot at 10X magnification?

• A. Pinpoint
• B. Pit
• C. Plot
• D. Point naif

Answer: (A)

In gemology, the term for a very small included crystal that appears as a dot at 10x magnification is pinpoint. Pinpoints are tiny crystals trapped inside the diamond; at 10x they look like small, dot-like specks. They’re typically white or colorless and can occur singly or in groups. The presence, number, and placement of pinpoints help determine the diamond’s clarity grade, especially when they’re visible under magnification or affect the stone’s appearance in a critical area. Other terms don’t fit because a pit refers to a hollow cavity rather than a tiny crystal; plot isn’t a recognized term in diamond clarity; and point naif isn’t used in modern gemology.

In gemology, the term for a very small included crystal that appears as a dot at 10x magnification is pinpoint. Pinpoints are tiny crystals trapped inside the diamond; at 10x they look like small, dot-like specks. They’re typically white or colorless and can occur singly or in groups. The presence, number, and placement of pinpoints help determine the diamond’s clarity grade, especially when they’re visible under magnification or affect the stone’s appearance in a critical area.

Other terms don’t fit because a pit refers to a hollow cavity rather than a tiny crystal; plot isn’t a recognized term in diamond clarity; and point naif isn’t used in modern gemology.