Red color on Ruby Stone mainly due to chromium (am) with Hexagonal crystal system. The best Ruby is blood red (am) and Crystals from Burma (Myanmar). and Crystals originating from Myanmar known as Burmese Ruby. and Crystals originating from Myanmar known as Burmese Ruby, and Crystals originating from Myanmar known as Burmese Ruby.

Ruby is the most precious and valuable of all colored gemstones. Rubies have had something of importance in many cultures for thousands of years. Ruby is characterized by dynamic shades of red, very good red (aspect reflects light almost like a mirror), and violence (difficult to start and therefore tough). Very large best quality ruby gemstones are very rare to find.
The price of rubies is mainly determined by the color. The brightest and most valuable red color can cost a lot more than other rubies of the same quality. After color, next is clarity: A clear stone indicates a high price.
Batu Ruby Pigeon Blood (Pigeon blood) from Burma
historically, term “pigeon blood” describes a ruby red to slightly purplish or pink color with a soft red fluorescence, glowing. Traditional descriptions like these are useful for evoking images and depicting colors among professionals. But they can be misinterpreted when used to describe the true color of a ruby.
Over time and years of experience, trade terms can give rise to the perception of certain colors and qualities associated with the source of the stone. However, its quality may be typical of that source or it may represent the finest stone from that source.
One source never produces gems that are all the same color and quality. Even, descriptive trade terms may represent only a small part, however very desirable percentage of stone from that source.
What You Should Know Before Buying a Ruby:
Even though the green emerald (Color): The best rubies are the fresh blood red ones, and is a very precious stone. rubies are also available in burgundy and dark red, or pink.
Size (size): larger carats are ruby gemstones, with a more valuable and expensive price. Rust ruby with good color and clarity (Clarity) it's worth enough. Rubies bigger than this are rare and very expensive.
Clarity (Clarity): Most natural rubies have some cloudiness or imperfection. very little is really clear. better quality rubies are transparent, and not blurry.
Piece (Cut): The quality of the ruby's cut determines how well it shines. Perfect cut rubies which are very precious and hard to find.
Care, Synthetic and imitation (Treatments, Synthetics and Imitations): Almost all rubies are treated to improve clarity and color. heat treatment is standard and widely accepted. The treatment that a ruby receives can affect its value and added quality. In the laboratory made rubies are widely available and are worth much less than natural rubies.. Some dishonest sellers who might try to sell you fake rubies.