Diamond



Though often thought of as a colorless stone, a truly colorless diamond is a rarity. Usually diamonds have a light yellow tint, sometimes brown.If precious stones were described as a hierarchy, the diamond would be reigning over all as King (or Queen, depending on your preferences). Aside from being the most loved, popular and appreciated of all precious stones, the diamond is also the most valuable gemstone money can buy. The word diamond has ancient Greek origins (adamas), being translated as unbreakable, invincible.

This is owing to the fact that diamonds are the hardest and strongest materials known to mankind and raw ones can only be altered by other diamonds. Scientifically speaking, in mineralogy, diamond is a metastableallotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice, according to Wikipedia

Rubby



Though also found in hues of pink, purple and orange, ruby's most desirable and valuable color is that of the richest and purest of red

Emerald



true, deep green color, the emerald is a striking stone alleged to give its wearer a quicker wit and a higher IQ. Emeralds are the precious stones that stand out with their rich green shades. Also a popular piece of jewelry for thousands of years, emerald has Sanskrit origins, meaning the green of growing things (Marakata).

Emerald grading is based on color, cut, clarity and carat weight parameters (commonly known as the 4 Cs of Connoisseurship), in order to determine how valuable the piece is.

Sapphire



A gem long-associated with romance and royal leanings, Princess Di received a blue sapphire engagement ring from Prince Charles back in 1981.
Sapphires are one of the hardest minerals in the world, ranking in at number 3 after diamond and moissanite with a 9 on the Mohs scale. Even though sapphires can be found in various colors, they are generally associated with their royal blue shade. If you consult a gemstone meanings chart, you will find out that sapphires are a symbol of purity, peace, loyalty, serenity, faith and wisdom.