Glossary Blog » diamonds

Diamond Grading. A cavity is an equidimensional opening in the surface of a polished diamond, sometimes caused by a blow or the pulling out of a knot in polishing.

Carbon is an element. Diamond, graphite, and carbon black are all carbon; the carbonates, like calcite, contain some carbon in combination with other elements.

  Here is a link to a video by GIA explaining how to read their reports: //players.brightcove.net/1799386198001/default_default/index.html?videoId=2976926381001      

Diamonds, the birthstone of April, are the most popular gemstones in the world. With their sparkling brilliance and timeless elegance, diamonds have been prized for centuries. According to the AGS (The American Gem Society), diamonds are the hardest natural substance known to man. They are formed under intense heat and pressure deep within the earth's mantle. Diamonds are composed almost entirely of carbon, and their unique...