Loose Diamond Definitions: A

Abrasion-Tiny nicks along facet junctions, producing white fuzzy lines instead of sharp crisp facet edges.

Alluvial Stone- A stone that has been transported by water and deposited in seas, lakes or stream beds. Many gems, including diamonds, are found in alluvial deposits.

Antwerp-Diamond center of the world, 2nd largest port of Europe on the river Scheldt, Belgium.

Artificial Stone- A gem material that is either a manmade imitation or a synthetic.

Asterism-A six-rayed starlike figure optically produced in some crystal structures by reflected or transmitted light.

A | B | C | D | E | F | G | H | I | J | K | L | M
N | O | P | Q | R | S | T | U | V | W | X | Y | Z