The diamond, a symbol of eternity, is undoubtedly the most coveted gemstone in fine jewelry. Unrivalled, it has been firmly rooted in the tradition of engagement rings for over a century. Even today, nearly eight out of ten rings are adorned with it, making it the ultimate emblem of commitment.
And yet, not all diamonds are white.
While the white diamond is often associated with crystalline purity and exceptional brilliance, colored diamonds—yellow, green, blue, pink—are also highly prized in high jewelry for their rarity and distinctive radiance.
Other shades, however, were long overlooked by the market. This is particularly true of brown diamonds, and more specifically the chocolate diamond, distinguished by the depth of its color and the richness of its reflections. Gemmyo recognized the potential of this once-forgotten gemstone, with its warm and indulgent hue. Today, it has established itself in the world of fine jewelry, offering a creative alternative to the traditional white diamond.
To understand its story, let us travel back several billion years.
The History of the Chocolate Diamond
Before exploring the contemporary story of the chocolate diamond, you may wish to consult our diamond guide to learn more about its broader history and origins.
The modern history of the chocolate diamond begins in 1979, with the discovery of the Argyle diamond mine in the Kimberley region, in the far north of Western Australia, by geologist Maureen Muggeridge.
Although brown diamonds have existed for as long as diamonds have been mined, they were once undervalued and considered less desirable than colorless stones. In certain ancient cultures, colored diamonds were used to signify social status, yet it was not until the 20th century that brown diamonds began to be truly appreciated.
For several decades, this deposit was the world’s primary source of brown diamonds, accounting for approximately 80% of global production. It is largely thanks to this mine that chocolate diamonds gradually gained recognition in the jewelry market.
Since the mine’s closure in 2020, the rarity of brown diamonds has increased further. Their growing popularity has encouraged many jewelry houses to take a renewed interest in brown diamonds, particularly chocolate diamonds.
Origins of the Chocolate Diamond
At Gemmyo, our chocolate diamonds are sourced from Australia, a country renowned for having hosted one of the world’s largest deposits of brown diamonds: the Argyle mine.
Characteristics of the Chocolate Diamond
Composed of 99% carbon, all diamonds are true marvels of nature, formed approximately 3.3 billion years ago.
But what makes this gemstone so exceptional?
1. The hardest gemstone on Earth
It is important to note that a chocolate diamond is, above all, a diamond in its own right. Its chemical structure is identical to that of a classic diamond, and its hardness remains unmatched, scoring 10 out of 10 on the Mohs scale—making it the hardest natural material on Earth. Only another diamond can scratch a diamond. That said, while exceptionally hard, a diamond is not indestructible. For further details, we invite you to consult our dedicated diamond guide.
2. A distinctive color
As you may have gathered, the primary difference between a white diamond and a chocolate diamond lies in their color. The chocolate hue results from slight plastic deformations in the carbon crystal lattice, formed under extreme pressure within the Earth’s mantle. This phenomenon gives the stone its deep brown reflections without affecting its durability.
Rich and enveloping, its color reveals indulgent nuances with radiant brilliance, making it an ideal choice for those seeking a form of luxury that is both subtle and distinctive.
3. A spectrum of shades
Brown diamonds can be classified according to the GIA’s Fancy Color scale, ranging from Fancy Light to Fancy Intense. Chocolate diamonds most often fall within the Fancy Intense Brown or Fancy Deep Brown categories. The renowned Argyle mine also developed its own color scale, classifying diamonds from the lightest to the darkest shades: from C1 to C4 for champagne tones, C5 to C7 for cognac hues, and C7 to C8 for chocolate shades.
The value of a chocolate diamond depends on its cut, carat weight, and above all its color, which should be intense and uniform, without overly light or dark zones. Gemmyo’s chocolate diamonds, classified as gem quality, display a color ranging between C7 and C8 on the Argyle scale and a clarity of SI or higher, according to the GIA. They are also sourced responsibly and ethically.
4. The rarity of the chocolate diamond
Approximately 15% of diamonds mined worldwide are brown. However, the majority of these stones contain inclusions or lack sufficient transparency, making them unsuitable for jewelry. Only a small proportion meets the required quality standards. Among all brown diamond shades, the deep and even tone of the chocolate diamond remains particularly rare.
Frequently Asked questions
Are chocolate diamonds rare?
Brown diamonds are relatively common in nature. However, gem-quality chocolate diamonds—featuring a deep hue and minimal inclusions—are far rarer. Some jewelry houses seek diamonds that meet highly specific quality criteria, making such stones even more exceptional.
The color of a chocolate diamond plays a particularly significant role and has a direct impact on its value. Carat weight and clarity also contribute to its price. Since the closure of the Argyle mine, the value of brown diamonds has been steadily increasing.
What is the quality of Gemmyo chocolate diamonds?
Gemmyo offers chocolate diamonds with SI clarity. This grade corresponds to “Small Inclusions,” which are generally invisible to the naked eye, making it a highly desirable quality in fine jewelry.
Can a chocolate diamond be used for an engagement ring?
Chocolate diamonds offer a warm and distinctive alternative to white diamonds. Rings, pendants, earrings, necklaces… in recent years, they have carved out a place of their own in the world of fine jewelry.
While an alternative to the traditional white diamond, the chocolate diamond is no less radiant. Its defining feature? A rich, indulgent hue that beautifully reimagines the classic.
In our view, it is an unequivocal yes: the chocolate diamond has everything it takes to become the perfect companion for an engagement ring—with a touch of originality.
How should you choose a chocolate diamond?
When selecting a chocolate diamond, it is advisable to favor a homogeneous color and to assess the intensity and depth of its hue, which define its uniqueness. Popular cuts such as round brilliant, cushion, or radiant maximize light reflection and beautifully enhance its brown tones.
Chocolate diamonds can also be paired with white, cognac, or champagne diamonds—or with other colored gemstones—to create elegant and contemporary contrasts.
You will also find our designs within the Paris 1901 collection, featuring a warm Hazelnut gradient, showcasing a luminous harmony of chocolate, cognac, and champagne diamonds.
Which metal best complements a chocolate diamond?
With its warm tones, the chocolate diamond pairs beautifully with yellow gold and rose gold, creating a natural and harmonious result. Its rich, indulgent color makes it ideal for modern, contemporary designs that are both understated and radiant.
How should you care for a diamond?
Like all diamonds, the chocolate diamond boasts exceptional hardness—10 on the Mohs scale—making it suitable for everyday wear, including engagement rings. Scratch-resistant, certainly—but not unbreakable. Its extreme hardness means it does not absorb impact well and may, in rare cases, chip or fracture.
Care remains simple: clean your diamond with lukewarm water and mild soap using a soft brush. A soft toothbrush or a small jewelry brush works perfectly. Gently scrub, rinse with clean water, and dry with a soft cloth.
If you purchased your piece from Gemmyo, you are always welcome to visit a boutique, where cleaning is offered for life.
For what occasion should a chocolate diamond be given?
With its radiant brilliance and indulgent hue, the chocolate diamond is a refined choice for any occasion.
Its durability and timeless appeal make it particularly suited for engagement rings. A true symbol, it combines the classic elegance of the diamond with a warm, creative twist.
Discover our chocolate diamond jewelry.
Explore our chocolate diamond engagement rings.
Browse our full collection of colored gemstones.