The modern diamond guide
Lab-Grown Diamonds.
Real beauty, reimagined.
Real diamonds, created with advanced technology rather than mined from the earth - made for a new generation of love stories.
Diamond, at a glance
Everything you expect from a diamond.
The defining difference is origin - not whether it is a diamond.
Real diamond
The same fundamental carbon crystal structure and diamond properties.
Made by technology
Grown from a diamond seed using CVD or HPHT processes.
More for the budget
Typically a lower purchase price than a comparable natural diamond—without relying on a fixed discount claim.
No diamond mining
Its journey begins in a controlled facility, outside the diamond-mining supply chain.
The essential answer
Are lab-grown diamonds real diamonds?
Yes. They are diamonds: crystallized carbon with the same fundamental properties as natural diamonds.
Laboratory-grown and natural diamonds are both crystallized carbon. They share the fundamental chemical, physical and optical properties that create a diamond’s hardness, brilliance and fire.
Origin still matters. Natural diamonds formed in the earth; lab-grown diamonds formed in a controlled environment. Trained gemological laboratories can identify that origin from growth characteristics and advanced testing, even when the difference is not apparent to the eye.
A different origin for the diamond itself.
An honest comparison
Lab-grown vs. natural diamond
Both can be beautiful, lasting choices. The right decision depends on what you value most.
Crystallized carbon
Crystallized carbon
Diamond brilliance and fire
Diamond brilliance and fire
10 on the Mohs scale
10 on the Mohs scale
Created by CVD or HPHT
Formed deep within the earth
Usually weeks
Billions of years
Typically a lower purchase price
Typically a higher purchase price
No diamond mining
Extracted through mining
Avoids the diamond-mining chain
Depends on mine and supply-chain controls
Origin identified on laboratory reports
Natural origin identified on reports
Scalable production
Finite geological rarity
Developing, less established market
More established secondary market
You want more diamond for your initial budget.
You value modern production, real diamond properties and avoiding diamond mining.
Geological rarity matters deeply to you.
You value an earth-formed origin and a more established secondary market.
Sourcing, without slogans
The mining and conflict-diamond question
A meaningful distinction deserves careful language.
The Kimberley Process was created to prevent rough diamonds used by rebel movements or their allies to finance armed conflict against legitimate governments from entering legitimate trade.
The program reports that diamonds meeting this specific definition now account for less than 0.1% of global diamond production—an important reduction. Human-rights organizations note that the definition is narrow and does not cover every labor, state-actor or private-security abuse that may occur in a mining supply chain.
A lab-grown diamond avoids the diamond-mining supply chain altogether. For many modern buyers, that is a clear and practical preference—not a judgment on every natural diamond.
From seed to stone
How lab-grown diamonds are made
Two remarkable processes. Neither method is automatically “better.”
Chemical vapor deposition
CVD
A thin diamond seed sits in a low-pressure chamber. Carbon-rich gas is energized into plasma, and carbon atoms build diamond crystal layer by layer.
High pressure, high temperature
HPHT
A diamond seed and carbon source are placed under intense pressure and heat. Carbon dissolves and crystallizes around the seed.
Post-growth treatments may sometimes improve color. A reputable report may note growth method and relevant treatment information.
A 2026 buyer update
Understanding diamond grading now
Laboratory reports confirm origin and describe quality - but not every lab uses the same format.
Traditional framework
IGI continues to use the 4Cs.
IGI laboratory-grown diamond reports identify origin and provide assessments of Carat Weight, Color, Clarity and Cut, with polish and symmetry details.
System changed October 2025
GIA now uses overall categories.
For eligible colorless-to-near-colorless lab-grown diamonds, GIA uses descriptive Premium or Standard assessments rather than presenting the traditional natural-diamond color and clarity nomenclature in the same way.
Before you buy Match the report number to the stone and verify the laser inscription where applicable. Do not assume every diamond is accompanied by the same laboratory’s report.
Choose with confidence
A smarter lab-grown diamond checklist
Start with what creates visible beauty. Then decide where your preferences—not a grading chart—should lead.
- 01
Prioritize cut
Cut quality has the greatest influence on how brilliantly a diamond handles light.
- 02
Choose color in context
Consider the setting metal, diamond shape and the warmth you personally notice.
- 03
Look for eye-clean clarity
You may not need an extremely high clarity grade for a diamond that looks clean without magnification.
- 04
Compare dimensions, not just carats
Carat is weight. Face-up measurements explain how large the diamond appears.
- 05
Verify the report
Confirm origin, report number, inscription where present, and any noted growth or treatment information.
- 06
Choose the shape you love
Round, oval, emerald, radiant or pear: personal style should have the final word.
A more useful environmental answer
No mining does not mean no impact.
Lab-grown diamond production avoids mining, but it still requires energy and industrial equipment.
The footprint can vary meaningfully with the growth method, facility efficiency, electricity mix and how impacts are measured. Ask for specific, substantiated information rather than relying on broad labels such as “eco-friendly” or “zero impact.”
Questions, answered clearly
Lab-grown diamond FAQ
01Are lab-grown diamonds real diamonds?
Yes. They are crystallized carbon with the same fundamental chemical, physical and optical properties as mined diamonds. Their origin is different: they grow in a controlled facility.
02Are lab-grown diamonds fake?
No. A lab-grown diamond is a diamond. Clear “laboratory-grown” disclosure distinguishes its origin from a mined diamond.
03Can a jeweler tell one from a natural diamond?
Not reliably by sight alone. Specialized laboratories use growth patterns, fluorescence and spectroscopy to identify origin.
04Will a lab-grown diamond pass a diamond tester?
Usually, yes. Common thermal testers detect diamond-like heat conductivity, not origin. Advanced screening is needed to distinguish laboratory-grown from natural.
05Will it become cloudy or lose its sparkle?
No. The crystal does not turn cloudy with age. Like any diamond, surface oils and residue can dull its appearance temporarily; normal cleaning restores its sparkle.
06Is it as durable as a natural diamond?
Yes. Both are diamond and rank 10 on the Mohs hardness scale. Diamonds are highly scratch-resistant, though any diamond can chip at a vulnerable edge under a hard impact.
07What is the difference between CVD and HPHT?
They are two ways of growing diamond crystal. CVD builds carbon in layers from a carbon-rich gas; HPHT uses high pressure and heat around a diamond seed. Neither method is automatically better.
08Are lab-grown diamonds conflict-free?
They avoid the diamond-mining supply chain and the conflict-diamond concerns associated with mined rough diamonds. Responsible sourcing still includes asking about factory labor, energy and manufacturing transparency.
09Are they environmentally better?
They require no diamond mining, but production still uses energy and materials. The footprint varies by facility, growth method, energy source and reporting boundary, so broad claims such as “zero impact” are not credible without evidence.
10Why are lab-grown diamonds cheaper?
Production is scalable and the supply is not constrained by geological rarity. Market pricing changes, but a lab-grown diamond typically offers more size or quality for the same initial budget.
11Do lab-grown diamonds have resale value?
They may have resale value, but the secondary market is less mature and future prices are uncertain. Buy for beauty and wear—not as a guaranteed investment.
12How is a lab-grown diamond different from moissanite?
A lab-grown diamond is a diamond. Moissanite is a separate gemstone, not a laboratory-grown diamond.
13Are lab-grown diamonds graded or certified?
Independent laboratories evaluate them and issue grading or assessment reports. “Grading report” is the more accurate term; the report should clearly identify laboratory-grown origin.
14Can they be used in engagement rings?
Absolutely. Their diamond hardness and durability make them well suited to everyday engagement-ring wear, with the same care considerations as natural diamond.
15Do they look different from natural diamonds?
To the unaided eye they can be extremely difficult to distinguish. Laboratory instruments can identify different growth characteristics and confirm origin.
Your diamond, your priorities
Choose the diamond that makes sense for you.
Explore lab-grown engagement rings or create something entirely your own—with guidance when you need it.