The clarity of a diamond is determined by the visibility of any flaws in or on the surface of a diamond.  Almost all diamonds contain naturally occurring internal characteristics called inclusions. The size, nature, location and number of inclusions determine a...

Certification or Diamond Grading Report

A diamond’s certificate or grading report is an assessment of a gemstone’s identity and quality characteristics such as color, clarity, carat weight, polish and symmetry and sometimes cut from an independent laboratory. GIA, AGS, EGL, and IGI are some of the most...


A unit of measure of weight of diamonds and gemstones. One carat can also be divided into 100 “points.” A .50-carat stone is the same as a 50-point or 1/2-carat stone. A .25-carat stone is the same as a 25-point or ¼-carat stone.


The appearance, or extent, of internal and external reflections of “white” light seen in a polished diamond when it is viewed face-up.