Diamond Terms
Chase Your Jeweler
Anatomy
This term defines the different sections of a diamond and how exactly they’re chopped into pieces. Furthermore, its anatomy forms part of the diamond’s cut grade.

Appraisal
A diamond’s appraisal takes place at the culmination of a rigorous investigation of the diamond’s qualities.

Asscher Cut

Blemish

Carat

Cavity

Carbon Spots
These are filth spots within a diamond piece. Quite often, this type of filth is usually seen as black spots. Carbon spots can be seen by the naked-eye but in some instance the use of a microscope will be required to truly see it

Certification
defined as a document of all grades, plots, and traits of a diamond.

Color

Crown

Cut

Depth
is known as the height of a diamond from the culet to the table and it is measured in millimeters by all diamond experts.

Depth Percentage
The depth percentage is the diamond’s height divided by width. This influences the brilliance and sparkle of a diamond.

Diamond

Diamond Plot
a plot is a mapping of a diamond’s interior and exterior flaws.

Diamond Treatments

Dispersion

Emerald Cut

Extra Facet

Facet

Fair Cut

Fluorescence

GIA

GIA Certificate

GIA Dossier
is an abbreviated certification of the GIA Grading report. This certification is used for smaller diamonds.

GIA Grading Report

Laser Inscription

Length to Width Ratio
This ratio term refers to the calculations of a diamond, taken by dividing length (longer measure) by width (shorter perpendicular to length).

Make

Marquise Cut

Measurements
These refer to the width, depth, and length in millimeters of all diamonds.

Mohs Scale

Natural

Needle

Oval Cut
A type of broadened and brilliant diamond cut that makes the diamond longer and slimmer.

Pavilion

Pavilion Angle

Pear Shaped

Pinpoint

Point

Polish

Princess Cut

Proportion

Radiant Cut

Ratio

Round
defined as a brilliant cut. It contains 58 facets or 57 if there is no culet.

Shapes
There are about 10 diamond shapes. These are defined as round, princess, oval, marquise, pear, cushion, emerald, asscher, radiant, and heart.

Single Cut
These cuts leave tiny round diamonds that only have around 16-17 facets. These are normally seen more in pave jewelry or small set diamonds.

Step Cut
These diamonds refer to the flat places in the diamond that resemble stair steps. There are three rows of facets arranged around the table and on the pavilion.

Symmetry

Table

Table Percentage

Trillion Cut
known as a shining fancy shape diamond that is triangular in cut.

Yield
lastly, this term refers to the weight of finished diamonds cut from the rough stone. For example: there is a greater yield cutting a two carat diamond from a three carat rough than a two carat rough from a six carat diamond.