Alexandrite is a beautiful gemstones jewelry named after a Russian czar. Alexandrite is a basic crysoberyl type, and is best noted for it's color changing properties depending on the shade of light it is exposed to. Alexandrite shifts between greenish to blue, to purple and even crimson hues. It is this very color-changing property that makes Alexandrite one of the most valuable gemstones around.
Amber Jewellery formed from fossilized tree sap, amber jewellery is best known for it's soft yellow golden hue, which is distinctly different from other yellow-colored gemstones because it diffuses light into a much softer shade of gold than other yellow gemstones, which tend to intensify and sparkle instead. The fact that Amber Jewellery is fossilized liquid makes finding unflawed pieces with no bubbles or cracks in the Amber Jewellery much rarer and more valuable.
Amethyst Jewelry is the most famous type of purple gemstone. Amethyst jewelry's color is a very light shade of purple that captures light inside the gem's facets. The color of amethyst jewelry is often semi-transparent as opposed to other purple gemstones which are darker and more opaque. It is this crystalline clarity and beauty which makes amethysts jewelry sought after by certain collectors.
Chalcedony / Agates
Chalcedony also known as agates. Chalcedony is a form of quartz crystal which is composed of several different strains of quartz fused together in parallel layers. This tends to make chalcedony / agates multi-colored, and the effect is like looking at a rainbow if the different layers of quartz are of varied colors and types. Quartz mines which hold different deposits of quartz types are ideal places to dig for this, and chalcedony / agates is the rarest form of quartz gemstones jewelry around.