Pink Diamond: Value, Rarity, and the Second-Hand Market

The pink diamond is one of the rarest, most captivating, and sought-after gemstones in the world. Its unique color —caused by specific “imperfections” in its crystal structure — significantly contributes to its high market value and growing demand, making it a standout gem both in the realm of luxury jewelry and among investment-grade diamonds. But how much is a pink diamond really worth? What factors influence its price? What is its cost per carat? And what does a pink diamond symbolize?
In this article, we will explore every aspect of the pink diamond: from its physical characteristics and resale market to some of the most iconic examples, such as the legendary Graff Pink.

What Is a Pink Diamond and Where Does Its Color Come From?

Unlike other colored gemstones, the color of pink diamonds does not result from chemical impurities such as nitrogen or boron. In fact, the distinctive hue of pink diamonds is not caused by elements within the crystal lattice, but rather by structural distortions that occur during the diamond’s formation deep within the Earth. Scientifically, this phenomenon is known as “plastic graining”—microscopic distortions in the crystal structure that affect how light interacts with the stone, giving it its characteristic pink tint.

This unique origin makes every pink diamond a one-of-a-kind specimen, with color variations that can differ significantly—even among stones extracted from the same mine.

Where Are Pink Diamonds Found?

For decades, the primary source of pink diamonds was the Argyle mine, located in Western Australia. This mine was responsible for more than 90% of the global production of natural pink diamonds. It’s worth noting, however, that pink diamonds accounted for only a tiny fraction—approximately 0.01%—of Argyle’s total diamond output. The closure of this historic mine in 2020 had a significant impact on the diamond market. In particular, the global supply of natural pink diamonds has declined sharply, contributing to their increased rarity and, as a result, a substantial rise in market value.

In addition to Australia, secondary deposits exist in Russia (the Mir mine), South Africa, Brazil, and Canada. However, the quantity and quality of pink diamonds extracted from these regions are generally lower compared to those from Australia.

Are All Pink Diamonds the Same?

Absolutely not. Pink diamonds vary significantly in terms of color intensity, clarity, tone, and saturation. These factors play a decisive role in determining the final price of the stone. The color grading of pink diamonds is based on several categories, which include:

• Faint Pink 
• Fancy Light Pink
• Fancy Pink
• Fancy Intense Pink
• Fancy Vivid Pink 
  

A pink diamond with a Fancy Vivid grade, for example, can be worth up to ten times more than a Faint Pink diamond of the same carat weight. This is because the market places far greater value on the vibrancy and purity of the color than on the stone’s size alone.

In fact, a small pink diamond with a vivid, well-saturated hue can be significantly more valuable than a larger diamond that appears pale or has an indistinct tone.

Pink Diamond: Price per Carat

Determining the value of a pink diamond and its price per carat means entering a highly variable and nuanced market. As mentioned earlier, while the classic 4Cs (cut, clarity, color, and carat) remain fundamental, other factors—particularly color intensity and origin—play a crucial role in pricing.

Below is an average price estimate per carat for pink diamonds, categorized by color intensity:

These prices refer specifically to certified natural pink diamonds, particularly those accompanied by international certifications such as those issued by the GIA (Gemological Institute of America) or those with provenance from the Argyle mine.

Pink diamonds that have undergone artificial color treatments—such as irradiation or high-pressure high-temperature (HPHT) processes—can cost 70–80% less than their natural, untreated counterparts, due to their lower rarity and collector value.

The “Graff Pink”: The Most Iconic Pink Diamond of All Time

When it comes to pink diamonds, it’s impossible not to mention the Graff Pink—one of the most famous and expensive pink diamonds ever sold. This extraordinary emerald-cut diamond weighs 24.78 carats, is graded Fancy Intense Pink, and was auctioned by Sotheby’s in 2010 for approximately $46 million, making it one of the most valuable diamonds in the world at the time.

The Graff Pink stands out for its exceptional clarity and masterful cut, and was set into a collectible ring. Media attention and the name of its buyer—renowned jeweler Laurence Graff—further elevated the stone’s status, turning it into a true symbol of exclusivity and elegance.

The case of the Graff Pink illustrates just how astronomical the value of a pink diamond can become. Other noteworthy examples include:

• The Eternal Pink (10.57 carats, estimated value: ~$35 million)

• The Pink Legacy (19 carats, sold at Christie’s Geneva for CHF 50.3 million)

• The Pink Promise (14.93 carats, oval cut, sold for $32.1 million)

These record-breaking sales highlight the unique appeal of pink diamonds among collectors and investors alike.

What Is a Pink Diamond Worth on the Second-Hand Market?

It’s a question frequently asked by collectors, investors, and enthusiasts alike. However, as with the price per carat, there’s no one-size-fits-all answer—the value of a pink diamond on the second-hand market depends on several key factors:

• Color (Natural vs. Treated): A natural pink diamond retains significantly more value on the resale market compared to a stone with artificially enhanced color.

• Certification: A GIA or Argyle certificate is essential to verify the stone’s authenticity, origin, and natural color, and greatly increases buyer confidence.

• Carat Weight and Clarity: As with any diamond, these characteristics strongly influence resale price—even more so when combined with high color grades.

• Market Demand: With the rising scarcity of natural pink diamonds, demand remains strong, helping to sustain high resale values—even for second-hand gems.

• Condition and Cut: A well-cut, well-preserved stone—free of scratches or visible flaws—commands a higher price on the secondary market.

In summary, a certified, natural pink diamond in excellent condition can retain or even increase its value over time, especially in today’s constrained market.

What Does a Pink Diamond Symbolize?

Beyond its rarity and value, a pink diamond carries deep symbolic meaning, which adds to its appeal in both personal and cultural contexts. Traditionally, pink diamonds are associated with:

• Love and Romance: The pink hue is often linked to tenderness, passion, and emotional connection, making these diamonds a popular choice for engagement rings and meaningful gifts.

• Femininity and Elegance: Pink diamonds evoke grace, refinement, and timeless beauty, symbolizing a sophisticated and delicate strength.

• Individuality and Uniqueness: Due to their rarity and varied tones, pink diamonds are seen as a reflection of uniqueness and personal expression.

• Power and Prestige: High-profile sales and their presence in royal and celebrity collections have made pink diamonds a symbol of status and distinction.

For many, a pink diamond is not just a gem—but a statement of identity, sentiment, and exclusivity.

Pink Diamond: A Timeless Jewel

Pink diamonds represent one of nature’s most captivating creations—rare, valuable, and visually unmatched. Whether you're a collector, an investor, or simply an admirer of beauty, understanding the market dynamics, true value, and unique characteristics of these stones can be the difference between a good purchase and an exceptional investment—or between an ordinary sale and a truly successful one.

With the closure of the Argyle mine and an increasingly limited supply, the price per carat of pink diamonds is expected to continue rising over time, further cementing their status as true treasures of the Earth.

If you own a pink diamond and wish to know its current value, it’s essential to rely solely on experienced professionals who can provide an accurate and realistic appraisal. You can contact Auctentic today—our GIA-certified gemologists and international network are ready to support you at every stage, from valuation to the final sale.

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