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GomEd vs. Ruby: What is the Difference?

by Madonna

Gemstones have fascinated humanity for centuries, serving as symbols of wealth, power, and beauty. Among the myriad of gemstones, two names often come up in conversations: GomEd and ruby. While both are stunning in their own right, they possess distinct characteristics that set them apart. In this article, we will delve into the differences between GomEd and ruby, exploring their origins, physical properties, uses, and more.

Origins and Formation

Ruby: The Red Corundum

Ruby is a precious gemstone and a variety of the mineral corundum (aluminum oxide). Its red color, ranging from pink to blood-red, is due to the presence of chromium. The name “ruby” is derived from the Latin word “ruber,” meaning red. Rubies are primarily found in Myanmar (Burma), Thailand, Sri Lanka, and parts of Africa. The formation of rubies occurs under high-pressure and high-temperature conditions in the Earth’s crust, where aluminum-rich rocks undergo metamorphism or crystallize from magma.


GomEd: The Garnet Group

GomEd, more commonly known as garnet, refers to a group of silicate minerals that share similar crystal structures but differ in chemical composition. The garnet group includes several species such as almandine, pyrope, spessartine, grossular, and andradite. GomEd can exhibit a wide range of colors, including red, green, yellow, orange, and even colorless. The name “garnet” is derived from the Latin word “granatum,” meaning pomegranate, due to the red variety’s resemblance to pomegranate seeds. Garnets form in a variety of geological environments, including metamorphic rocks and igneous rocks.


Chemical and Physical Properties

Chemical Composition

Ruby: The chemical formula for ruby is Al₂O₃, indicating that it is primarily composed of aluminum oxide with chromium impurities.


GomEd (Garnet): Garnets have a general chemical formula of X₃Y₂(SiO₄)₃, where X and Y represent various metal ions. For example, almandine is Fe₃Al₂(SiO₄)₃, and pyrope is Mg₃Al₂(SiO₄)₃.

Hardness and Durability

Ruby: Rubies have a hardness of 9 on the Mohs scale, making them one of the hardest gemstones, second only to diamonds. This high hardness translates to excellent durability and resistance to scratching.

GomEd (Garnet): Garnets have a hardness ranging from 6.5 to 7.5 on the Mohs scale, depending on the species. While not as hard as rubies, garnets are still relatively durable and suitable for various types of jewelry.

Crystal Structure

Ruby: Rubies crystallize in the trigonal system, forming hexagonal prisms with flat basal terminations.

GomEd (Garnet): Garnets crystallize in the cubic system, typically forming dodecahedrons or trapezohedrons.

Color and Optical Properties

Color Variations

Ruby: The color of ruby ranges from pink to deep red, with the most valuable being the “pigeon’s blood” red, characterized by a vivid, pure red hue with a hint of blue.

GomEd (Garnet): Garnets can exhibit a wide spectrum of colors. The red garnets, such as almandine and pyrope, are often confused with rubies. However, garnets can also be green (tsavorite and demantoid), orange (spessartine), and many other colors.

Optical Phenomena

Ruby: High-quality rubies may exhibit asterism (star effect) when cut en cabochon, due to the presence of rutile inclusions that create a star-like pattern on the surface.

GomEd (Garnet): Some garnets, particularly those from the demantoid and andradite varieties, can display a phenomenon known as “horsetail” inclusions, which are unique, fibrous inclusions that enhance their visual appeal.

Value and Rarity

Market Value

Ruby: Rubies are among the most valuable gemstones, with prices per carat increasing exponentially with size and quality. The rarity of high-quality rubies, especially those with minimal inclusions and vibrant color, makes them highly sought after.
GomEd (Garnet): Garnets are generally more affordable than rubies, with their value depending on the type and quality. Certain garnet varieties, like tsavorite and demantoid, can command high prices due to their rarity and exceptional color.


Ruby: Fine rubies are rare, particularly those with vivid color and high clarity. The most famous source, Myanmar, produces rubies of exceptional quality, though newer sources in Africa are also gaining recognition.
GomEd (Garnet): While garnets are relatively common, certain types, such as the green tsavorite and demantoid, are rare and highly prized.

Uses and Symbolism


Ruby: Due to their beauty and durability, rubies are a popular choice for all types of jewelry, including rings, necklaces, and earrings. They are also favored for engagement rings, symbolizing passion and love.

GomEd (Garnet): Garnets are used in a wide range of jewelry, from everyday pieces to high-end designs. Their varied colors make them versatile for different styles and settings.

Symbolism and Lore

Ruby: Rubies have been treasured throughout history for their association with wealth, power, and protection. In ancient times, they were believed to protect warriors in battle and bring success and love to their owners.

GomEd (Garnet): Garnets have a rich history and are often associated with protection, healing, and strength. They were used as talismans by ancient travelers to ensure safe journeys and are believed to inspire love and devotion.

Care and Maintenance


Ruby: Rubies can be cleaned with warm, soapy water and a soft brush. Ultrasonic and steam cleaners are generally safe for untreated rubies, but caution is advised for treated stones.

GomEd (Garnet): Garnets can also be cleaned with warm, soapy water and a soft brush. Ultrasonic cleaners are usually safe for garnets, but steam cleaning is not recommended due to the potential for heat damage.


Ruby: Rubies should be stored separately from other gemstones to avoid scratching them or being scratched. Soft pouches or lined jewelry boxes are ideal.

GomEd (Garnet): Garnets should be stored in a similar manner to rubies, ensuring they are kept separate from harder gemstones to prevent damage.

See Also: Tips to Know Before Buying a Pigeon Blood Ruby


In summary, while both GomEd (garnet) and ruby are captivating gemstones with rich histories and unique properties, they differ significantly in their chemical composition, physical characteristics, and market value. Rubies, with their exceptional hardness, vivid red color, and high value, are one of the most prized gemstones. Garnets, on the other hand, offer a broader range of colors and are generally more affordable, though certain varieties can be quite valuable.

Understanding these differences can help consumers make informed decisions when purchasing gemstones, whether for personal enjoyment or investment. Both rubies and garnets bring beauty and elegance to jewelry, each with its distinct charm and significance.


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