Amethyst 14mm Faceted Heart A Grade - 15-16 Inch Shape_Cut Cube which refers to a "precious

which refers to a "precious blue-green color-of-sea-water stone

Hackmanite is very reactive under UV light

Apatite has been labeled the “deceitful stone” due to its close resemblance to other much more valuable gems

this opal variety is characterized by their dark base tone

Amethyst 14mm Faceted Heart A Grade - 15-16 Inch Shape_Cut Cube which refers to a "preciousAmethyst is a beautiful purple stone, known as a Gem of Fire by ancient cultures. It has been greatly sought after throughout history and was at times valued as highly as Diamond. Today, this semi to precious variety of quartz is found in many locations around the world. The presence of Manganese within the stone produces the purple hue, and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light