< Science of Diamonds / Colored Diamonds
Discover the Rarest Color of Fall: All About the Natural Orange Diamond
With fewer than 0.05% of diamonds showing even a hint of orange, these fiery gems are nature’s rarest fall masterpiece.
A model shows “the Orange,” a 14.82-carat pear-shaped, vivid orange diamond during a press preview at Christie’s Geneva. (Getty Images)
There’s something about fall that stirs the senses. The air cools, leaves turn shades of amber and flame, pumpkins fill every doorstep, and suddenly the world shifts into a warm, golden palette. It’s the season of spice, cider, and for jewelry lovers, one of the rarest and most mesmerizing gemstones on Earth: the natural orange diamond.
Just as orange leaves only appear for a fleeting moment each year, true orange diamonds are a rare and exceptional occurrence in nature. Their fiery glow feels made for this time of year, evoking everything we love about the season: warmth, harvest colors, celebration, and a touch of Halloween magic.
Meet the Expert
- Grant Mobley is the Jewelry & Watch Editor of Only Natural Diamonds.
- He is a GIA Diamonds Graduate.
- He has over 17 years of jewelry industry experience, starting with growing up in his family’s retail jewelry stores.
What Makes an Orange Diamond Orange?
Unlike yellow diamonds, where nitrogen creates a clear scientific pathway to color, the origin of these orange gems is more mysterious. Gemologists know nitrogen still plays a role, but in a far rarer way. In orange diamonds, nitrogen atoms absorb light at an unusual wavelength, shifting the stone’s body color into a pure flame-like hue rather than the golden tones of yellow diamonds.
And yet, that explanation still doesn’t fully decode their magic. Some orange diamonds also show signs of plastic deformation, the same internal distortion responsible for pink diamonds. This suggests that, beyond nitrogen, intense geological stress contributed to their intense color; essentially, the Earth itself twisted the diamond’s atomic structure to ignite that fiery glow.
Only a tiny fraction of diamonds ever achieve this effect, making orange-hued diamonds one of the most elusive colors in the World of natural diamonds.
How Rare Are Natural Orange Diamonds?
To understand just how exceptional these gems are, it helps to look at the numbers. Fewer than 0.05% of all natural color diamonds discovered show even a hint of orange. Among those, only a tiny fraction achieve the coveted “Fancy Vivid Orange” grade without secondary hues. Southern Africa and Brazil have produced most of the World’s known orange-colored diamonds, with a few rare discoveries also emerging from Australia. Even within that already tiny category, finding a stone with a saturated, pure orange tone is astonishingly rare. So rare, in fact, that many gemologists will go their entire careers without encountering one.
Compared to other colored diamonds, orange sits in a league of its own. Yellow diamonds appear more frequently, and even blues and pinks, while highly prized, are better represented in major auctions than pure orange diamonds.
Famous Orange Diamonds That Defined the Color
Because of their extreme rarity, only a handful of true orange diamonds have ever entered the public eye, making each one instantly legendary. These few stones stand as benchmarks of the color, their fame amplified precisely because so few exist in the world.
The Pumpkin Diamond
Perhaps the most famous of them all, the 5.54-carat Pumpkin Diamond is a Fancy Vivid Orange masterpiece. Famed diamantaire William Goldberg cut the diamond, Harry Winston later owned it, and Halle Berry famously wore it at the Oscars when she became the first Black woman to win Best Actress.
The Orange Diamond
In 2013, Christie’s Geneva auctioned a 14.82-carat Fancy Vivid Orange diamond, simply called The Orange. It is officially the largest Fancy Vivid Orange diamond in the World and sold for over $35 million. The sale smashed records and proved the orange category can command prices per carat close to the rarest blue and pink diamonds.
These stones are not just diamonds; they are legends. And like all great legends, they come out on rare occasions, much like Halloween’s most haunting tales.
Why Orange Diamonds Are Perfect for Fall
There’s something about orange-colored diamonds that feels inseparable from the mood of autumn. Their warm tones mirror everything we love about the season. The glow of carved pumpkins on front porches, the rich amber shades of falling leaves, and the flicker of candlelight through frosted windows. Like the best moments of fall, orange diamonds radiate a cozy, ember-like warmth that feels luxurious and comforting at once.
Just as nature shifts the leaves from green to fire-toned copper, an orange-colored diamond comes to life only when nature decides the conditions are just right. Their glow feels otherworldly and deeply emotional, like a piece of autumn captured forever in gemstone form.
The Enduring Magic of Orange Diamonds
The world will never see a flood of orange diamonds—and that is part of their wonder. They are a geological anomaly, a fire born in Earth’s depths, appearing only when nature’s chemistry and pressure align in a nearly impossible way.
So this fall, as pumpkins find their place on doorsteps and leaves turn, let your mind wander for a moment to one of nature’s most magical events, the formation of a natural orange diamond, glowing like a tiny ember carved from the Earth.
