The King of Gems and Symbol of Eternal Passion

Ruby is the gemstone of fire, royalty, and undying love. Known as the “King of Gems,” Ruby has captivated humanity for thousands of years with its deep red brilliance and legendary symbolism. Associated with power, vitality, and protection, Ruby has adorned emperors, warriors, and lovers alike—always chosen when only the most precious gem will do.

Few stones carry the emotional intensity and historical weight of a fine Ruby. It is not just a gem—it is a statement.

🔬 Scientific Profile

Ruby is the red variety of corundum, with the chemical formula Al₂O₃. Its iconic red color is caused by the presence of chromium. Ruby crystallizes in the trigonal system and typically forms hexagonal prisms.

It ranks 9 on the Mohs hardness scale, making it one of the most durable natural gemstones—second only to diamond in everyday practicality. Its refractive index ranges from 1.76 to 1.77, and its specific gravity is approximately 4.00.

All other colors of gem-quality corundum are classified as sapphire, making red corundum a class of its own: Ruby.

Many Rubies on the market are heat-treated to enhance their color and clarity—this is a permanent, accepted industry practice. Untreated Rubies with strong color and minimal inclusions are exceptionally rare and valuable.

❤️ Color and Variety

Ruby’s most prized color is a rich, vibrant red with a hint of blue—known as “pigeon’s blood” red. This color is especially associated with fine Rubies from Burma (Myanmar), and stones with this hue are among the most valuable per carat of all gemstones.

Burmese Rubies are considered the gold standard for quality, known for their intense red saturation, strong fluorescence, and fine silk inclusions that give the gem a soft, velvety texture.

Mozambique Rubies have gained global recognition for their vivid red color and relative availability in the modern market. While some stones are treated, many display excellent color and clarity, making them highly desirable.

Thai and Cambodian Rubies tend to be darker with more brownish tones, while African Rubies—from Tanzania and Kenya—can show both intense red and pinkish-red hues, often at attractive price points.

Rubies are rarely flawless. Inclusions are common and even expected, and are often used to confirm natural origin. The presence of fine rutile silk can actually enhance the stone’s beauty and serve as proof of authenticity.

📜 History and Symbolism

Ruby has a richer history than nearly any other gemstone. In ancient Sanskrit texts, it was called “ratnaraj”—meaning “king of precious stones.” In Burma, warriors believed Rubies made them invincible in battle. In the Bible, Rubies were considered among the most precious of the twelve stones in the breastplate of the High Priest.

During the Middle Ages, Rubies were worn as protection from plague and misfortune, and were said to darken in color as danger approached. Royal courts across Europe and Asia treasured Rubies as emblems of courage, strength, and divine favor.

Metaphysically, Ruby is associated with the root chakra, symbolizing grounding, energy, and life force. It is said to ignite passion, stimulate ambition, and foster love in its purest and most enduring form.

Ruby is the birthstone for July, and the traditional gift for the 15th and 40th wedding anniversaries.

💎 Ruby in Jewelry

With its intensity and durability, Ruby is a perfect choice for heirloom-quality jewelry. It is commonly used in engagement rings, anniversary bands, and regal statement pieces that are meant to last for generations.

Oval and cushion cuts are among the most popular shapes for Ruby, maximizing the stone’s brilliance while preserving carat weight. Round, pear, and emerald cuts are also widely used, with high-quality stones often set as solitaires or surrounded by diamond halos.

Because of its rich red tone, Ruby pairs beautifully with yellow gold, rose gold, and platinum, and complements both vintage and modern designs. Its versatility means it can be worn daily or reserved for your most treasured occasions.

High-quality Rubies over 2 carats are increasingly rare, and untreated stones with vivid color and clean clarity are considered investment-grade.

✨ Experience True Ruby at Chicago Gems & Jewelry

At Chicago Gems & Jewelry, we offer a premium collection of fine Rubies—from vivid Mozambique stones to rare Burmese gems and exceptional antique heirlooms. Every Ruby is hand-selected by our GIA graduate gemologist for color, authenticity, and overall brilliance.

Whether you're celebrating a July birthday, an anniversary, or searching for a statement piece with meaning, our Ruby inventory features both loose stones and finished jewelry tailored to your style.

Located in Crystal Lake, Illinois and proudly family owned since 2008, we provide trusted gem expertise, honest service, and a deep passion for fine colored stones.

Chicago Gems & Jewelry – Where Knowledge Meets Beauty, and Every Stone Tells a Story.