This may detract from their value, but a notable and unique piece can still be crafted with the right choice of stone and precision of cut. On the whole, most Amethysts have quite poor clarity, with clouding from inclusions or strong bands of other minerals. Given that sometimes the cost of testing can exceed the price of the gemstone, care should be taken to buy from reputed dealers and have larger stones tested by an independent gem laboratory Are clear Amethyst stones rare?

Heat treatment is often applied to Amethysts to intensify and deepen their purple hue, with imitations and synthetics also present in the market place. The finest stones display a deep purple color with flashes of red in incandescent light. Whilst tastes in color do vary over time, usually the deeper and more intense purple stones are considered the most valuable. Large pieces with great clarity are relatively easy to find and make for excellent cost effective additions to your gemstone collection.ДЄ variety of hues are available, from light purple with a pinkish glow, through to deep purple. Given that Quartz is probably one of the most plentiful minerals on Earth, Amethysts, one of the most precious forms of Quartz are widely available. The coloring is thought to be the result of natural impurities (most likely to be iron and some trace elements). Amethysts are a purple variety of quartz and is the most valued among the quartz group.

Amethyst gemstone