Ass #9 - Clarity vs Blemishes

Features within or on a gemstone that affect its clarity, graded by their size, number, and position.

Features inside a gemstone, either completely enclosed or extending into it from the surface.

Features on the surface of a gemstone.

Determining the clarity of a gemstone based on the presence and characteristics of inclusions and blemishes.

A magnifying lens used by gemologists to examine gemstones, corrected for distortions.

Color distortion in a lens causing a rainbow effect.

Distortion in a lens causing straight lines to appear bent at the edges.

A mineral crystal found inside a gemstone, like a diamond.

The distance above and below a point in focus that remains clear when a microscope's focus changes.

Multiple images of a clarity characteristic caused by the strong refraction of light in a gemstone.

A tiny impact area with small, feather-like structures visible under magnification (10x).

An included diamond crystal that extends to the surface, often appearing as raised areas on facets.

A natural radiation stain that may appear green but turn brown from heat during cutting.

A shallow opening on the surface, usually at the girdle edge, with rounded outlines.

An opening on the surface caused by a broken feather or detached crystal, often during polishing.

A portion of the original diamond surface dips below the polished surface, showing growth marks like trigons or grooves.

A tiny tunnel created by a laser, reaching from the surface to an included crystal.

A technique to create or enlarge a surface-reaching feather around a dark inclusion.

A small notch on a facet junction, usually along the girdle edge or at the culet.

A treatment where molten glass fills laser drill-holes or surface-reaching feathers.

A series of tiny scratches or pits on a diamond facet, often appearing white or fuzzy.

A thin, dull white line on a diamond's surface, curved or straight.

An extra facet not part of the diamond's designed cutting style, commonly near the girdle.

A wavy or bumpy area on a diamond's surface, often from polishing near the octahedral plane.

Fine, parallel grooves and ridges left by polishing on a diamond facet.

A hazy surface area on a diamond caused by excessive heat during polishing.

A burn specifically caused by excessive heat where the dop (a polishing tool) touches the diamond.

An irregular, pitted, or granular surface of a bruted girdle.

A small opening on a diamond's surface, often looking like a tiny white dot.

Mark or saw-like characteristic left on a diamond from a laser manufacturing process.

A long, thin crystal, appearing rod-like under magnification. Can be white, bright, or dark.

A very small crystal, appearing as a tiny dot under magnification. Usually white, sometimes dark.

Many tightly grouped pinpoints. Can be hazy or dense, affecting transparency.

A series of pinpoints/clouds/crystals forming on a twinning plane, radiating from the center.

Irregularities in crystal growth, appearing as lines, angles, or sheets.

A concentrated area of crystal growth distortion, often white or dark, appearing thread-like or pinpoint-like.

A general term for any break in a diamond.

A break in a cleavage plane of a diamond.

An angular opening on the diamond surface, extending inward, potentially with striations.

Minute feathers along a diamond's perimeter. Can be lightly or heavily bearded.