Lab Grown Diamond vs Natural Diamond: Complete Comparison Guide
Compare lab grown and natural diamonds by origin, appearance, 4Cs, certification, price, rarity, sustainability, resale and suitability for rings, earrings, necklaces and bracelets.
Are Lab Grown Diamonds Real Diamonds?
Yes. A lab grown diamond is not an imitation such as cubic zirconia or moissanite. Both lab grown and natural diamonds are crystalline carbon and can exhibit the same brilliance, fire, hardness and range of color and clarity grades.
Both are diamond, not look-alike substitutes.
Both are extremely resistant to scratching but can still chip under sharp impact.
Cut, color, clarity and carat weight are used for both origins.
How Each Diamond Forms
Natural Diamond Formation
Natural diamonds form through geological processes deep within the Earth and reach accessible deposits through volcanic activity. Their origin is tied to geological rarity, mining, sorting and global distribution.
Lab Grown Diamond Formation
Lab grown diamonds are created from a diamond seed using HPHT or CVD technology. Growth occurs in controlled conditions, after which the rough crystal is cut, polished and graded like other diamonds.
| Process | Natural Diamond | Lab Grown Diamond |
|---|---|---|
| Origin | Geological formation in the Earth | Controlled technological growth |
| Growth environment | Natural pressure and temperature over geological time | HPHT or CVD equipment |
| Rough production | Recovered through mining | Produced in a laboratory or manufacturing facility |
| Cutting and polishing | Required | Required |
| Independent grading | Available | Available |
| Reliable identification | Gemological testing and laboratory instruments | Gemological testing and laboratory instruments |
Lab Grown vs Natural Diamond Comparison Table
| Feature | Lab Grown Diamond | Natural Diamond |
|---|---|---|
| Material | Diamond: crystalline carbon | Diamond: crystalline carbon |
| Hardness | 10 Mohs | 10 Mohs |
| Visible appearance | Can be visually indistinguishable | Can be visually indistinguishable |
| Growth features | May show growth-related inclusions or patterns | May show geological inclusions or growth features |
| 4Cs | Cut, color, clarity, carat | Cut, color, clarity, carat |
| Report identification | Clearly identified as laboratory-grown | Identified as natural diamond |
| Typical price position | Usually lower for comparable specifications | Usually higher due to geological rarity and market structure |
| Size within a budget | Often allows larger size or higher grades | Often requires more compromise at the same budget |
| Rarity story | Technological production | Geological origin and natural rarity |
| Supply behavior | Can expand with production capacity | Limited by recovery, sorting and suitable quality |
| Resale behavior | Secondary market is developing and variable | Established but still highly variable |
| Best suited to | Modern value, size, design flexibility | Natural origin, rarity and tradition |
Can You See a Difference in Sparkle?
Origin does not determine sparkle by itself. Light performance is controlled by facet design, proportions, polish, symmetry and the way a diamond interacts with light. A well-cut lab grown diamond can outperform a poorly cut natural diamond, and the reverse is also true.
The 4Cs Apply to Both
Often the strongest driver of visible sparkle.
Graded on a scale according to the laboratory system.
Both origins may contain inclusions and blemishes.
Compare millimeter dimensions as well as carat weight.
Read the Diamond Guide, Diamond Shape Guide and Hearts & Arrows Cut Mechanics for deeper buying criteria.
Certificates, Reports and Disclosure
Independent reports provide grading information and explicitly state whether a diamond is laboratory-grown or natural. Sphere Diamond offers IGI-certified lab grown diamonds for qualifying stones and selected designs. Confirm the report number, grading details and any laser inscription for the exact diamond.
| Report field | Why it matters |
|---|---|
| Origin identification | States laboratory-grown or natural |
| Measurements | Shows physical dimensions and proportions |
| Carat weight | Records diamond weight |
| Color and clarity | Records laboratory grades |
| Cut, polish and symmetry | Describes finish and, where applicable, cut grade |
| Comments and treatments | Records relevant growth or treatment information |
| Report number | Supports verification and matching with inscription |
Continue to the IGI Lab Grown Diamond Certificate Guide.
Price, Value and Resale
Initial Purchase Price
Lab grown diamonds generally offer a lower purchase price for comparable size and grades. This can allow a larger center stone, higher color or clarity, or a more detailed setting within the same budget.
Resale and Investment Claims
Neither origin should be presented with a guaranteed resale return. Natural diamonds have a longer-established secondary market, while lab grown resale markets continue to evolve. Actual outcomes depend on the individual stone, rarity, documentation, condition, market demand and selling channel.
Sustainability, Ethics and Origin Transparency
Lab grown diamonds avoid conventional diamond mining, but environmental performance varies with electricity source, production efficiency, geography and lifecycle boundaries. Natural diamond mining has land, energy and water impacts, while operating standards and restoration practices vary between producers.
| Question | What to ask for lab grown | What to ask for natural |
|---|---|---|
| Origin | Producer or manufacturing location | Mine or supply-chain traceability |
| Energy | Electricity source and production efficiency | Energy used in mining and processing |
| Labor | Factory standards and disclosure | Mining, cutting and trading standards |
| Environmental claims | Methodology and scope of claim | Mining impact, restoration and monitoring |
| Documentation | Laboratory report and seller disclosure | Laboratory report and chain-of-custody information |
Responsible comparison avoids blanket claims. Ask for specific, verifiable information rather than relying only on broad words such as “ethical” or “eco-friendly.”
Which Is Better for Each Jewelry Type?
| Jewelry type | Why lab grown may suit | Why natural may suit | Key design checks |
|---|---|---|---|
| Engagement ring | Larger size, higher specs and custom flexibility within budget | Natural origin, rarity and tradition | Cut, setting, ring size, wedding-band fit and report |
| Wedding ring | Efficient matching across several stones | Preference for natural origin | Stone matching, comfort and setting security |
| Earrings | Matched pairs and higher total carat weight | Natural-diamond tradition | Pair matching, backs, weight and droop |
| Pendant or necklace | Larger focal diamond or more stones within budget | Natural rarity in a signature piece | Chain, bail, length, clasp and stability |
| Bracelet or bangle | Continuous diamond designs at accessible total weight | Natural-diamond collecting preference | Link flexibility, clasp, matching and setting wear |
Infographic: Six Steps to Choose Between Lab Grown and Natural
Common Myths
| Myth | More accurate explanation |
|---|---|
| Lab grown diamonds are fake | They are diamonds; simulants such as CZ and moissanite are different materials. |
| Natural diamonds always sparkle more | Sparkle depends primarily on cut and light performance. |
| Every lab grown diamond is flawless | Lab grown diamonds can have inclusions and a full range of grades. |
| Every natural diamond is rare | Rarity depends on size, color, clarity, type and market availability. |
| Lab grown is always green | Environmental performance depends on energy and production details. |
| Natural diamonds always appreciate | Resale is variable and never guaranteed for ordinary retail jewelry. |
Explore Sphere Diamond Collections and Guides
Frequently Asked Questions
Are lab grown diamonds real diamonds?
Yes. They are diamonds with the same crystal structure and essentially the same chemical, physical and optical properties as natural diamonds.
What is the main difference between lab grown and natural diamonds?
Their origin. Natural diamonds form in the Earth, while lab grown diamonds are created in controlled laboratory conditions using technology that reproduces diamond-growing environments.
Can you tell them apart by looking?
Usually not with the unaided eye. Reliable identification may require trained gemologists and specialized laboratory instruments.
Do lab grown diamonds sparkle the same?
They can. Sparkle depends mainly on cut quality, proportions, polish, symmetry, cleanliness and lighting.
Are lab grown diamonds cubic zirconia?
No. Cubic zirconia is a diamond simulant with a different composition and properties.
Are lab grown diamonds moissanite?
No. Moissanite is a different gemstone with different optical and physical properties.
Are lab grown diamonds as hard as natural diamonds?
Both are diamond and rank 10 on the Mohs hardness scale, although durability of jewelry also depends on shape, inclusions, setting and wear.
Do lab grown diamonds have inclusions?
Yes. Both origins may contain internal and surface features formed during growth.
What methods are used to grow diamonds?
The two principal methods are HPHT and CVD.
What does HPHT mean?
High Pressure High Temperature. It uses conditions designed to promote diamond crystal growth under high pressure and temperature.
What does CVD mean?
Chemical Vapor Deposition. It grows diamond layer by layer from a carbon-containing gas in a controlled chamber.
Is HPHT better than CVD?
Not automatically. Finished quality should be judged by the individual diamond’s 4Cs, proportions, treatments and overall appearance.
Can lab grown diamonds be certified?
Yes. Laboratories such as IGI issue grading reports that identify the diamond as laboratory-grown and record grading information.
Does an IGI report prove the diamond is lab grown?
The report identifies the origin category and lists characteristics for the submitted diamond. The report number may also be matched with a laser inscription when present.
Does every Sphere Diamond piece include an IGI report?
IGI-certified lab grown diamonds are available for qualifying stones and selected designs. Confirm documentation for the exact piece.
Do natural diamonds also receive grading reports?
Yes. Natural diamonds may be graded by independent gemological laboratories.
Are the 4Cs used for both origins?
Yes. Cut, color, clarity and carat weight are used to describe both lab grown and natural diamonds.
Which origin gives a larger diamond for the same budget?
Lab grown diamonds commonly allow a larger size or higher specifications within the same budget, although prices change over time.
Do lab grown diamonds hold value like natural diamonds?
Resale behavior differs and is not guaranteed for either origin. Buyers should treat jewelry primarily as a personal purchase rather than rely on a promised return.
Are natural diamonds always an investment?
No. Retail jewelry prices include many costs, and future resale depends on market demand, rarity, documentation, condition and buyer access.
Why do lab grown diamonds cost less?
Production and supply economics differ from geological rarity, mining, distribution and inventory structures associated with natural diamonds.
Are natural diamonds rarer?
Natural diamonds suitable for jewelry require geological formation and recovery. Rarity varies greatly by size, color, clarity and type.
Are lab grown diamonds ethical?
Origin transparency may be easier to document, but responsible purchasing should still consider energy, labor, manufacturing, disclosure and supply-chain practices.
Are lab grown diamonds always environmentally friendly?
No universal claim applies to every producer. Environmental impact depends on energy sources, efficiency, location, equipment and full lifecycle boundaries.
Do natural diamonds always harm the environment?
Mining has environmental impacts, but practices, regulation, restoration and traceability differ between operations.
Which is better for an engagement ring?
Both can be suitable. Choose based on values, budget, desired size, rarity preference, documentation and the quality of the finished ring.
Which is better for wedding rings?
The origin is less important than diamond quality, matching, setting security, comfort and the ring’s construction.
Are lab grown diamonds suitable for earrings?
Yes. They are especially useful for matched pairs and can offer larger total carat weight within a budget.
Are lab grown diamonds suitable for necklaces and pendants?
Yes. They work in solitaire pendants, station necklaces, tennis necklaces and custom designs.
Are lab grown diamonds suitable for bracelets?
Yes. They are used in tennis bracelets, bangles and multi-stone designs. Matching and setting security are critical.
Can lab grown and natural diamonds be mixed in one piece?
Technically yes, but the seller should clearly disclose origin and documentation for each important stone.
Can a jeweler identify origin with a standard loupe?
Not reliably in every case. Specialized screening and laboratory analysis may be needed.
What should I compare in person?
Compare size, cut, shape, color, clarity, setting, metal, comfort, documentation and total finished design.
Where can I compare lab grown diamond jewelry in Bangkok?
Visit Sphere Diamond at CentralWorld Bangkok to compare engagement rings, earrings, necklaces, pendants, bracelets and custom options.
Does Sphere Diamond sell natural diamonds?
Sphere Diamond specializes in premium lab grown diamonds. Its sister house, S.Diamond, focuses on natural diamond jewelry.
How should I clean either type of diamond?
Use warm water, mild soap and a soft brush, rinse carefully and dry with a lint-free cloth.
Can either type chip?
Yes. Diamond is extremely hard but not indestructible. Sharp impacts can damage vulnerable edges or points.
Which diamond is right for me?
The right choice is the one that matches your priorities for origin, rarity, budget, size, design, documentation and personal meaning.
Compare Lab Grown Diamonds at CentralWorld Bangkok
Visit Sphere Diamond to compare diamond shapes, sizes, cut quality, IGI reports and finished jewelry for engagement rings, earrings, necklaces and bracelets.
Conclusion
Lab grown and natural diamonds are both real diamonds. The most meaningful difference is origin, followed by price structure, rarity story, supply and personal preference. Neither origin replaces the need to evaluate cut quality, dimensions, grading, disclosure, setting engineering and craftsmanship.
Sphere Diamond at CentralWorld Bangkok specializes in premium lab grown diamond fine jewelry, including engagement rings, wedding rings, earrings, necklaces, pendants, bracelets and custom designs. IGI-certified lab grown diamonds are available for qualifying stones and selected designs.
About This Guide
This guide was prepared to help customers compare diamond origins without misleading claims or oversimplified conclusions. Individual diamonds and finished jewelry should be assessed on their own merits.
Sphere Diamond Jewelry and The GIA Graduate Gemologist
CentralWorld Bangkok
lab grown diamond fine jewelry
Reviewed by Sphere Diamond Jewelry and The GIA Graduate Gemologist, Showroom: CentralWorld Bangkok, Specialty: lab grown diamond fine jewelry
