Amethyst can be found in almost every shape, size and cut. It’s quite plentiful so collectors can easily get stones with no visible inclusions. The variability of color distribution in amethyst crystals is spectacular. Amethyst is often cut as an oval or round size to showcase the color.

Amethyst color is due to iron and aluminum impurities. Colors can range from purple and violet to a paleish red-violet. Deep colors are the most sought after and most valuable.

A rich purple one with rose flashes is desired by most.Purple has always been considered one of the royal colors which made amethyst earn historical significance as a sign of power. Evidence of this is the fine amethysts that are featured in the British Crown Jewels. A known favorite of Catherine the Great and Egyptian royalty. It also holds a high place the Christian church and is acknowledged as “the stone of bishops”.

The so-called “Siberian” deep purple amethyst that has blue and red flashes will always get the highest price in this market.

When amethyst is heated at high temperatures, the iron impurities are minimized and may turn a violet amethyst into a golden ‘heated’ citrine.

It’s not uncommon for lower grade amethyst stones to be heated just enough to produce golden colored citrine stones. Heated citrine seems more reddish compared to unheated citrine.

Green amethyst is produced by heat treatment, so it is not considered a true amethyst.

Calibrated sizes of amethyst are mostly found in fancy shapes including trillions, shields and hearts are some favorites.