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How Much is One Carat Ruby Worth?

by Madonna

Rubies, often referred to as the “king of gemstones,” possess an allure and mystique that has captivated civilizations for centuries. As one of the most coveted gemstones in the world, rubies hold a special place in history, culture, and commerce. Belonging to the corundum family, alongside sapphires, rubies derive their mesmerizing red hue from traces of chromium within their crystalline structure.

Beyond their stunning beauty, rubies are revered for their rarity, durability, and profound historical significance. Throughout the ages, these precious gems have been associated with love, passion, and wealth, earning them a place of honor in the annals of gemstone lore.


Factors Affecting Ruby Value

Several key factors influence the value of a ruby, each contributing to its overall worth and desirability:


Color: The color of a ruby is perhaps the most crucial determinant of its value. Fine rubies exhibit a rich, vibrant red hue, often described as “pigeon blood red.” This intense coloration is prized for its rarity and depth, with saturation and tone playing pivotal roles in determining a ruby’s worth.


Clarity: Like all gemstones, clarity is an essential factor in assessing a ruby’s value. Clarity refers to the presence of inclusions, or internal flaws, within the gemstone. Rubies with minimal inclusions are considered more valuable, as they exhibit greater transparency and brilliance.

Cut: The cut of a ruby significantly impacts its visual appeal and value. A well-cut ruby maximizes the gem’s natural brilliance and enhances its overall beauty. Precision and symmetry are paramount in achieving optimal light reflection and dispersion, thus increasing the gemstone’s allure and value.

Carat Weight: As with many gemstones, size matters when it comes to rubies. Larger rubies command higher prices due to their rarity and visual impact. However, the quality of the ruby’s color, clarity, and cut also plays a significant role in determining its value relative to its size.

Pricing Ranges

The value of rubies can vary widely based on quality, with price ranges reflecting the gem’s unique characteristics and market demand:

Lower-Grade Rubies: Rubies of lesser quality may be more affordable, ranging from $100 to $300 per carat. These stones may exhibit lighter hues, lower clarity, and less desirable cuts.

High-Quality Rubies: Exceptional rubies with intense color, exceptional clarity, and superior cuts can command premium prices of $1,000 per carat or more. Fine specimens may fetch prices as high as $15,000 per carat, reflecting their rarity and desirability among collectors and connoisseurs.

Notable Sales Records

Several extraordinary ruby sales have captured the attention of gem enthusiasts and collectors worldwide, showcasing the enduring appeal and value of these precious stones:

Sunrise Ruby: In 2015, the Sunrise Ruby made headlines as the most expensive ruby gemstone ever sold at auction. This remarkable 25.59-carat Burmese ruby, characterized by its vivid red hue and exceptional clarity, fetched a staggering $30.3 million, setting a new benchmark for ruby valuations.

Graff Ruby: Prior to the Sunrise Ruby, the Graff Ruby held the title of the most expensive ruby sold at auction. This exquisite 8.62-carat Burma Ruby, renowned for its intense color saturation and flawless clarity, sold for $8.6 million in 2014, highlighting the enduring allure and investment potential of top-quality rubies.

Getting an Appraisal

For individuals seeking to determine the value of their ruby, obtaining a professional appraisal is essential. A qualified gemologist or appraiser can assess the ruby’s color, clarity, cut, and carat weight to provide an accurate valuation based on current market trends and demand.

When seeking an appraisal, it’s crucial to choose a reputable and experienced appraiser with expertise in evaluating gemstones. Additionally, obtaining multiple appraisals from different sources can offer valuable insights and ensure the assessment’s accuracy and impartiality.


Q: What color ruby is most valuable?

A: The most valuable rubies typically exhibit a rich, vibrant red hue often described as “pigeon’s blood.” This intense red color is caused by the presence of chromium in the gemstone. However, there’s also value in other shades of ruby, such as purplish-red or pinkish-red, depending on factors like clarity and intensity.

Q: How much is pure ruby worth?

A: The value of pure ruby depends on several factors, including its color, clarity, cut, and carat weight, as well as market demand and trends. High-quality rubies can command prices that surpass those of diamonds on a per-carat basis. Prices can range from a few hundred dollars per carat for lower-quality stones to tens of thousands or even millions of dollars per carat for exceptional specimens.

Q: How large is a 1 carat ruby?

A: The size of a 1 carat ruby can vary depending on its cut and shape. In general, a 1 carat ruby might measure approximately 6.5mm in diameter. However, the actual dimensions can differ based on factors like the gemstone’s proportions and whether it’s faceted or cabochon-cut.

In conclusion, the value of a ruby extends far beyond its monetary worth, encompassing its historical significance, cultural symbolism, and intrinsic beauty. As one of nature’s most extraordinary creations, the ruby continues to captivate and inspire, serving as a timeless symbol of love, passion, and prosperity for generations to come.


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