
What Is a Diamond?
Diamonds are the Earth’s most exquisite masterpieces, forged over billions of years in its molten depths. Under colossal pressure and searing heat, carbon atoms intertwine in a crystalline dance, crafting the hardest natural mineral known to humanity—a gem of unparalleled resilience and radiance. Unearthed first in India in the 4th Century BC, diamonds have long been coveted as emblems of eternal splendor.
At De Éternel, we transcend this ancient legacy. Our diamonds are the pinnacle of human artistry, meticulously crafted by master jewelers using avant-garde technology. Each gem mirrors nature’s brilliance, yet stands apart as a singular creation—ethically sourced, sustainable, and reserved for those who seek the extraordinary. With De Éternel, you possess not just a diamond, but an exclusive work of art, handcrafted to illuminate your unique story.
The De Éternel Difference
De Éternel is more than a jeweler—we are visionaries reshaping the diamond world with unmatched artistry and principle. Our lab-grown diamonds are born from a fusion of innovation and tradition, crafted by artisans whose skill elevates each stone to a level of prestige few can rival. We reject the ordinary, offering gems that embody ethical integrity, sustainability, and breathtaking beauty.
This is the De Éternel difference: a commitment to creating diamonds that are as rare in their provenance as they are in their perfection. When you choose us, you claim an heirloom of distinction—a piece crafted exclusively for you, imbued with the soul of modern luxury and the weight of timeless value.


Types of Diamonds
Natural Diamonds
Forged by the Earth over eons, these treasures are nearly 99.95% carbon, prized for their scarcity and primal allure.
Lab-Grown Diamonds
At De Éternel, our lab-grown diamonds are the zenith of crafted perfection. In pristine, controlled environments, our master artisans replicate—and elevate—nature’s genius. Chemically and visually identical to mined diamonds, these gems are the exclusive domain of those who value both artistry and conscience. Each stone is a bespoke marvel, reserved for connoisseurs of luxury who demand beauty with purpose.
4 C's of Diamonds
If you’re wondering what to look for in a diamond, the best place to begin is by understanding the 4 C’s: cut, color, clarity, and carat. Created by the Gemological Institute of America (GIA) in the 1940s, the 4 C’s act as a universal scale to describe and determine the quality of diamonds.
Cut
Cut is the proportion and arrangement of facets that determine a diamond’s brilliance, sparkle, and fire. The scale ranges from Excellent to Poor.


Color
Color references the absence of color within a diamond. The scale ranges from D (colorless) to Z. Diamonds outside this range are considered ‘fancy colored.’
Clarity
Clarity references the absence of internal inclusions and surface blemishes on a diamond. The scale ranges from Internally Flawless to Included.


Carat
Carat is a measurement unit that describes a diamond’s weight, not its size. One carat is roughly the weight of a paperclip.
Diamond Certification
At De Éternel, every diamond is a monument to our relentless pursuit of excellence. Certified by the world’s most esteemed gemological authorities—such as the Gemological Institute of America (GIA), International Gemological Institute (IGI), or Gem Certification & Assurance Lab (GCAL)—each stone undergoes rigorous scrutiny for cut, color, clarity, and carat. Our artisans select only the elite: diamonds of transcendent brilliance and fire, worthy of our exclusive collections.
Most stones bear a laser-inscribed signature, a mark of their authenticity and origin. Accompanied by digital certifications, these treasures reflect our dedication to transparency and sustainability, ensuring that your De Éternel diamond is a singular masterpiece, crafted for a privileged few.


Diamond Shape
A diamond’s shape is its soul, a testament to the hands that sculpt it. At De Éternel, our artisans are virtuosos, wielding precision and passion to craft shapes that captivate. From the timeless elegance of the round brilliant to the daring sophistication of fancy cuts—oval, pear, emerald, or marquise—each form is a bespoke expression of beauty.
Our exclusive shaping process ensures that every diamond radiates its fullest potential, tailored to reflect your individuality. With De Éternel, you don’t just wear a diamond—you wear a signature of prestige, handcrafted for you alone.
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Diamond Hardness
Diamonds reign as nature’s hardest creation, a flawless 10 on the Mohs scale, embodying strength that defies time. At De Éternel, our lab-grown diamonds inherit this indomitable spirit, perfected by artisans who ensure each gem is as enduring as it is exquisite.
Crafted to withstand the ages, these diamonds are more than adornments—they are legacies, reserved for those whose love demands nothing less than the eternal. With De Éternel, durability meets artistry in a union of unmatched distinction.


Diamond Fluorescence
Fluorescence is a diamond’s secret poetry, a glow that dances under ultraviolet light. At De Éternel, our master craftsmen curate stones where this phenomenon enhances their mystique, transforming each into a rare spectacle of light and shadow. Far from a flaw, fluorescence in our hands becomes a mark of exclusivity—ensuring your diamond is a singular treasure, radiant in its uniqueness, yet flawless in its integrity.
Diamond Price
The worth of a diamond lies in its rarity, its quality, and the artistry that defines it. At De Éternel, our lab-grown diamonds redefine this equation, offering peerless beauty at a value that defies tradition. Through cutting-edge innovation, we craft gems of extraordinary caliber—reserved for an elite clientele—without the inflated costs of mined stones.
This is luxury reimagined: prestige made accessible, yet never commonplace. With De Éternel, you invest in a diamond that is as exceptional in its creation as it is in its meaning.


Diamond Grading Scale
Choosing a diamond from De Éternel is an initiation into a world of artistry and privilege. Our master craftsmen stand ready to guide you:
Master the 4 C’s: With expert counsel, balance cut, color, clarity, and carat to craft a diamond that speaks to your soul—whether bold in size or pristine in purity.
Select Your Shape: From classic to avant-garde, our artisans sculpt each shape with bespoke precision, ensuring your diamond is a reflection of your singular taste.
Demand Certification: Every De Éternel diamond is authenticated by a premier lab (GIA, IGI, or GCAL), a seal of its elite status.
Our bespoke atelier invites you to co-create with our artisans, designing a piece as unique as your bond. From sketch to polish, every detail is a testament to our craft, yielding an heirloom of unparalleled prestige. Explore our curated collections online or visit us by appointment—our experts are available 24/7 to craft your exclusive legacy.
The Essence of De Éternel
At De Éternel, every diamond is a canvas for our artisans’ genius, a fusion of innovation and heritage. Our collections are not mass-produced—they are curated masterpieces, featuring diamonds of rare quality and ethical origin. To choose De Éternel is to claim a privilege: a gem crafted solely for you, a symbol of love and artistry that transcends generations. Welcome to a realm where prestige and purpose unite—welcome to De Éternel.
How to Buy Diamonds
When deciding on your dream diamond, it’s essential to do the following:
1. Study up on the 4 C’s. To find the best diamond for you, learn to balance the 4 C’s with your budget. If you’re looking for a high-carat stone, you may have to sacrifice cut, color, or clarity to keep it affordable. Or vice versa, if you’re looking for a colorless stone, you may have to sacrifice carat, cut, or clarity. And remember, no two diamonds are identical, and there’s no right answer to how a diamond should look.
2. Pick your favorite shape. While round brilliant diamonds are the most popular, remember that there are many other shapes to choose from. Here at Brilliant Earth, we offer eight shapes in addition to round: oval, cushion, princess, radiant, emerald, marquise, pear, and asscher.
3. Make sure that it’s certified. Your diamond must come with a digital or physical certification from an independent institution such as GIA, IGI, HRD, or GCAL to prove its authenticity and quality. All Brilliant Earth diamonds are certified, and any other diamond you’re considering purchasing should be, too.
At Brilliant Earth, we’re proud to offer our customers an incredible assortment of sustainable and ethical diamonds — in all shapes and sizes — so we suggest using our filters to navigate our diamond searches best. Once you’ve determined the shape and 4 C’s you’re hoping for, filter away to narrow it down to the perfect piece.
Our experts are also available 24/7 via chat, phone, text, and email to assist with questions big and small. If you’re interested in viewing diamonds in person, schedule an appointment and come see us.

Diamond Quiz
Do you need help finding your dream diamond? Our quiz is here to help you discover the perfect one.
Diamond Facts
1. The word diamond derives from the Greek “adamas,” which means invincible or indestructible.
2. The Cullinan Heritage Diamond is an egg-sized stone and the biggest diamond ever discovered in a rough, uncut form. Originally weighing 3,106 carats, it was eventually cut into nine stones, including a 530 carat and a 317 carat. Both are now part of the Crown Jewels in the United Kingdom.
3. The first known engagement ring is from 1477, when Archduke Maximillian of Austria proposed to Mary of Burgundy with a gold ring featuring an M spelled in diamonds.
4. The world’s rarest diamonds are natural diamonds of a red or orange color.
5. The Hope Diamond, a 44.52-carat blue diamond, is the largest of its kind and is said to be cursed. Originally 115 carats and of Indian origin, it was stolen by a merchant who recut it after taking it from the eye of a Hindu statue, incurring the wrath of the priests who then allegedly cursed it.
6. Scientists have discovered a star fifty light years from Earth that’s comprised of a ten billion-trillion-trillion-carat diamond. They named it Lucy (fitting, as it’s in the sky with diamonds).