Gemstones can be either mineral crystals or organic materials that have been cut by skilled craftsmen into beautiful pieces. Minerals are inorganic chemical compounds that can be found in rocks. 

Each mineral has a specific chemical composition and a regular atomic structure that gives it its color and hardness. You can buy various colored gemstones such as green gemstones through

Natural crystals can be attractive enough to be displayed. These crystals can be faceted or polished to enhance their appearance. 

Organics are gems that come only from animals and plants. These gems include pearl, amber, and ivory. Synthetics are a sub-category of gemstones. These synthetics are not of natural origin but are made in laboratories. 

A gemstone must be beautiful, rare, and long-lasting to be considered one. Gemstones in their natural, crystalline form are very rare and can only be found in a few places in the world. They are rare and therefore highly valued on the market. Gemstones should be attractive in color. Gemstones should be strong enough to withstand damage and scratches.

Gemstones' most important characteristic is their color. High-priced gemstones like emeralds and sapphires that are colored, such as rubies and emeralds, are very valuable. 

Although diamonds are colorless, skilled cutting techniques can make them beautiful and bright. White light is a mixture of all the colors. White light falls on gemstones and some colors are absorbed, while others are reflected.