One of the most popular traditional jewelry stones, ruby is exceptionally durable. Its colors ? always red ? can reach vivid levels of saturation. Ruby is gem-quality red corundum. The color comes from traces of chromium. All other color varieties of gem-quality corundum are referred to as sapphire. Pigeon blood ruby is the most sought-after color variety of ruby gemstone. Pigeon Blood Ruby meaning is primarily associated with its color that matches exactly with the blood drawn from a freshly killed pigeon. It displays bright red hue with a slight tint of purple that appears deep red when seen in light. This color-effect makes Pigeon Blood Red Ruby gemstone, universally popular and astrologically most relevant. Although some rubies are incredibly valuable and can command very high prices, most rubies are considerably less expensive than diamonds of the same size. This lower pricing makes a ruby an appealing alternative to a diamond for an engagement ring or other jewelry.