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DIAMOND CUT

Most diamonds are cut round with a full 58 facets, and a good cut, or make, has more scintillation, more sparkle. It is the work of a master cutter that allows the diamond to be cut in such a way as to permit the maximum amount of light to be reflected through the diamond, and that's a great reflection on you. It is the cut that enables a diamond to make the best use of light.

TYPES OF CLARITY CHARACTERISTICS

There are two basic categories of clarity characteristics, inclusions and blemishes.

Inclusions are clarity characteristics that are completely enclosed in a polished gem or those extending into it from the surface. Examples of inclusions are as follows:

Crystal — Another mineral crystal contained in the diamond. These crystals can include other diamonds, garnet or a host of other minerals.

Needle — A long, thin crystal.

Pinpoint — A very tiny crystal that looks like a dot or speck of dust. Pinpoints often congregate in clusters or clouds.

Twinning wisp — A series of pinpoints, clusters or crystals that formed in a twinned diamond's growth plane.

Internal graining — The appearance of faint lines, angles or curves caused by crystal growth.

Feather or gletz — A general term for any break or fracture in a diamond.

Bearded girdle — Minute feathers that extend from the girdle surface into the stone.

Indented Natural — The original crystal surface, or skin, that dips below the polished diamond's surface.

Knot — An included diamond crystal that extends to the surface after polishing.

Cavity — Space left when a surface-reaching crystal comes out during polishing.

Blemishes are external clarity characteristics caused by wear, the cutting process or the diamonds crystal structure. Examples of blemishes are as follows:

Nick — A small chip-like characteristic.

Abrasion — A series of minute nicks along a facet junction.

Scratch — A thin, dull, white line across the diamond's surface.

Natural — A portion of the original skin that remains on the diamond.

Pit — Small surface characteristic that looks like a tiny dot.

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