There's a common misconception floating around the jewelry world: that lab-grown diamonds are somehow "fake" or inferior to mined diamonds. The truth? They are chemically, physically, and optically identical. Here's everything you need to know.
What Is a Mined Diamond?
Mined diamonds are formed deep within the Earth's mantle over billions of years under extreme heat and pressure. They're brought to the surface through volcanic activity and extracted through large-scale mining operations. The result is a diamond composed of pure carbon in a crystal lattice structure — the hardest natural substance on Earth, rating 10 on the Mohs hardness scale.
What Is a Lab-Grown Diamond?
Lab-grown diamonds are created in controlled laboratory environments using one of two methods:
- HPHT (High Pressure High Temperature): Replicates the natural conditions deep within the Earth to grow a diamond from a carbon seed.
- CVD (Chemical Vapor Deposition): Uses a carbon-rich gas to deposit diamond layers onto a seed crystal.
The end result? A diamond with the exact same chemical composition (pure carbon), crystal structure, hardness, and optical properties as a mined diamond. The only difference is where it was grown.
Are They Really the Same?
Yes — and this isn't just marketing. The world's leading gemological laboratories, including the GIA (Gemological Institute of America) and IGI (International Gemological Institute), grade lab-grown diamonds using the same 4Cs framework as mined diamonds: Cut, Colour, Clarity, and Carat. A lab-grown diamond can receive the same grades — including Flawless clarity and D colour — as any mined stone.
Even Gemologists Can't Tell the Difference
This is one of the most important facts about lab-grown diamonds: even trained, certified gemologists cannot distinguish a lab-grown diamond from a mined one with the naked eye. The two are visually and structurally indistinguishable. Specialized equipment — such as a DiamondView machine or advanced spectroscopy tools — is required to detect the difference, and even then, it's based on microscopic growth patterns, not quality or appearance. To anyone looking at your ring, necklace, or earrings, it is simply a diamond — brilliant, beautiful, and real.
The Fine Jewelry Industry Is Taking Notice
Lab-grown diamonds are no longer considered a niche or budget alternative they have earned their place at the highest levels of the jewelry world. Across the industry, prestigious houses and forward-thinking fine jewelry brands have begun incorporating lab-grown diamonds into their collections, recognizing them as a legitimate and desirable choice for today's discerning customer. This widespread industry shift reflects a broader truth: lab-grown diamonds are increasingly seen as the future of fine jewelry, embraced not out of compromise, but out of conviction.
The Key Differences
While the diamonds themselves are identical, there are meaningful differences in how they're produced and priced:
Price
Lab-grown diamonds typically cost 40–70% less than mined diamonds of comparable quality. This means you can get a larger, higher-quality stone for the same budget.
Environmental Impact
Traditional diamond mining involves significant land disruption, water usage, and carbon emissions. Lab-grown diamonds have a considerably smaller environmental footprint, especially when produced using renewable energy sources.
Ethical Sourcing
Concerns around conflict diamonds ("blood diamonds") have long shadowed the mined diamond industry. Lab-grown diamonds offer a fully traceable, conflict-free origin — giving buyers complete peace of mind.
Resale Value
If resale value matters to you, it's worth understanding the nuances. For mined diamonds, resale potential is largely reserved for stones with high colour grades (D–H) and strong clarity (VS2 or better). Lower-grade stones — SI2 clarity or below — typically return little to nothing on the secondary market, regardless of whether they're mined or lab-grown. The same principle applies to lab-grown diamonds: only top-tier stones in excellent colour and clarity hold any meaningful resale interest. If your priority is a stone you can wear beautifully every day rather than an investment asset, lab-grown diamonds offer exceptional value — you get a visually superior stone for a fraction of the price of a comparable mined diamond.
What the Industry Says
In 2018, the Federal Trade Commission (FTC) updated its jewelry guidelines to recognize lab-grown diamonds as real diamonds, removing the word "synthetic" from its definition. The science is settled: lab-grown diamonds are diamonds.
Which Should You Choose?
The choice comes down to your personal values and priorities:
- Choose a lab-grown diamond if you want maximum value, ethical sourcing, and a larger or higher-quality stone for your budget.
- Choose a mined diamond if provenance, tradition, or long-term resale value on a high-quality stone are important to you.
Either way, you're getting a real diamond — one that will last a lifetime and look stunning set in fine jewelry.
At Tessories, we believe in transparency and helping you make informed choices. Whether you're drawn to lab-grown gems or natural stones, our pieces are crafted to honour the beauty of both.
Explore our collection and find the diamond that's right for you.
