Lab Grown Diamonds — The Complete Guide

If you're researching lab grown diamonds before buying, you probably have one core question: are they actually real diamonds, or just a clever imitation. The short, factual answer is that lab grown diamonds are real diamonds. They are not cubic zirconia, not moissanite, and not a synthetic substitute. They are chemically, physically, and optically identical to diamonds pulled from the earth — the only difference is where and how they were formed.

This page exists to explain that difference clearly, without sales pressure, so you can make an informed decision regardless of where you eventually buy.

What Is a Lab Grown Diamond, Exactly

A lab grown diamond begins as a small diamond seed, placed inside a chamber that recreates the conditions under which diamonds form naturally deep within the earth — intense heat and pressure, or a carbon-rich plasma environment. Over a period of weeks, carbon atoms bond to that seed in the same crystal lattice structure as a mined diamond, layer by layer, until a full diamond crystal has grown.

There are two established methods used to grow diamonds:

HPHT (High Pressure, High Temperature)

This method replicates the natural diamond-forming process most directly — a diamond seed is placed in carbon under extreme pressure (around 1.5 million pounds per square inch) and heat (around 1,500°C), causing carbon to crystallise around the seed.

CVD (Chemical Vapour Deposition)

This method places a diamond seed in a sealed chamber filled with carbon-rich gas. The gas is heated until the carbon atoms separate and settle onto the seed, building the diamond layer by layer. CVD is the more commonly used method for the gem-quality diamonds used in fine jewellery today.

Both methods produce a genuine diamond crystal — not a diamond look-alike.

Lab Grown vs Natural Diamond — What's Actually Different

The honest answer is: almost nothing, except origin.

Property	Natural Diamond	Lab Grown Diamond
Chemical composition	Pure carbon (C)	Pure carbon (C)
Crystal structure	Cubic, same lattice	Cubic, same lattice
Hardness (Mohs scale)	10	10
Refractive index	2.42	2.42
Fire and brilliance	Identical	Identical
Formation time	1–3 billion years	Weeks to months
Formation location	Deep within the earth's mantle	Controlled laboratory environment
Detectable difference to the eye	None	None

The only way to distinguish a lab grown diamond from a natural one is with specialised equipment that detects trace growth patterns invisible to the naked eye — equipment used by gemological labs, not jewellers or consumers. Visually, under a loupe, or set in a ring, there is no detectable difference. You get the same look, the same certification process, and the same diamond — just at a fraction of the cost.

Lab Diamond vs Moissanite

Property	Lab Grown Diamond	Moissanite
Material	Pure carbon (real diamond)	Silicon carbide
Hardness (Mohs)	10	9.25
Refractive index	2.42	2.65–2.69
Sparkle character	White and coloured fire, diamond-like	More rainbow-coloured flashes, distinct from diamond
Is it a diamond?	Yes	No, a different gemstone entirely

Lab Diamond vs Cubic Zirconia (CZ)

Property	Lab Grown Diamond	Cubic Zirconia
Material	Pure carbon (real diamond)	Zirconium dioxide
Hardness (Mohs)	10	8–8.5
Durability over years	Permanent, does not scratch or cloud	Can scratch, dull, or develop a cloudy look over years of wear
Typical price point	Genuine diamond pricing, lower than natural	Significantly lower, budget stone
Is it a diamond?	Yes	No, a completely different, lab-engineered stone

How Much You Actually Save by Choosing Lab Grown

This is the section most pages dance around, so let's be direct. A lab grown diamond typically costs 30–40% less than a natural diamond of the same carat, cut, colour, and clarity — and at higher carat weights, the gap widens further, sometimes to 50% or more. That saving is not a discount or a markdown. It is the real cost difference between a diamond that took weeks to grow in a controlled facility and one that took over a billion years to form underground and then moved through a long chain of miners, cutters, and wholesalers before reaching a retail counter.

In practical terms: if a 1-carat natural diamond ring costs you somewhere in the range of lakhs, a comparable 1-carat lab grown diamond, with the same cut, same colour grade, same clarity, and the same certified 4Cs, can often be bought for significantly less — savings that, depending on carat size, can run into tens of thousands of rupees to several lakhs at higher carats. That saving exists on day one, the moment you buy, not as a future promise. You are not getting a lesser stone for less money. You are getting the identical stone, certified to the same standard, for less money — because the cost difference was never in the diamond, it was in how it got to market.

What this means for how you shop: the budget you'd have spent on a smaller natural diamond can now get you a noticeably larger lab grown diamond, a better cut grade, a higher clarity grade, or simply money left over for the setting, the gold purity, or a piece you'd otherwise have had to compromise on.

Why Lab Grown Diamonds Cost Less

The price difference comes entirely from the supply chain, not the stone itself:

• No mining costs. Natural diamond mining involves enormous infrastructure, land disruption, and years-long extraction operations. Lab growth happens in a controlled facility on a much shorter timeline.
• Faster production cycle. A natural diamond takes over a billion years to form. A lab grown diamond of similar size can be grown in weeks. Faster production means lower carrying costs.
• Shorter, more transparent supply chain. Natural diamonds typically pass through multiple intermediaries — miners, cutters, wholesalers, distributors — each adding margin. Lab grown diamond supply chains are generally shorter.

None of this affects the diamond's hardness, brilliance, or durability. You are paying less because the diamond was grown faster and moved through fewer hands — not because it is a lesser stone.

Why Do Prices Vary Between Lab Diamonds?

Not every lab grown diamond is priced the same, and the reasons are the same ones that determine natural diamond pricing — carat weight, cut quality, colour grade, and clarity grade, known together as the 4Cs. A larger stone costs more than a smaller one. A better cut, one that returns more light, costs more than a poorly proportioned one. A higher colour grade (closer to colourless) costs more than a stone with visible tint. A higher clarity grade (fewer visible inclusions) costs more than a stone with noticeable flaws. None of these factors relate to whether the diamond is lab grown or natural — they are universal diamond grading standards.

Why Does One 1-Carat Lab Diamond Cost More Than Another?

Two diamonds can both be exactly 1 carat and still be priced very differently, because carat only measures weight, not quality. A 1-carat diamond with excellent cut, near-colourless grade, and high clarity will cost meaningfully more than a 1-carat diamond with a mediocre cut, a visible yellow tint, and noticeable inclusions — even though both weigh exactly the same. When comparing prices, always ask for the full 4C grading, not just the carat weight.

Myths vs Facts

Myth	Fact
Lab diamonds are fake	They are real diamonds — chemically and physically identical to mined diamonds.
They lose sparkle over time	They don't. Sparkle is a property of cut and clarity, not origin, and does not fade.
They become cloudy	They don't. Diamond, lab grown or natural, does not cloud with normal wear.
They break or chip easily	Same hardness as mined diamonds, 10 on the Mohs scale, the hardest natural material.
Nobody actually buys lab diamonds	Millions of carats of lab grown diamonds are sold worldwide every year, and the category continues to grow.
They are the same as CZ	Completely different. CZ is zirconium dioxide, a different mineral entirely. Lab grown diamond is carbon — a real diamond.

Are Lab Grown Diamonds Certified?

Yes. Reputable lab grown diamonds are graded by the same gemological standards used for natural diamonds — cut, colour, clarity, and carat weight (the 4Cs) — and certified by recognised gemological laboratories. A certified lab grown diamond will carry documentation stating its origin clearly as laboratory-grown, along with its full grading report. Always ask for certification when buying any diamond, lab grown or natural — it is the only objective way to verify quality claims.

Certification Labs Explained

IGI (International Gemological Institute) — one of the most widely used labs globally for lab grown diamond certification, providing full 4C grading and a unique report number.

SGL (Solitaire Gemological Laboratories) — a recognised gemological lab providing diamond and gemstone certification with detailed grading reports.

GCAL (Gem Certification and Assurance Lab) — known for stricter cut-grading standards and detailed light performance analysis.

Equivalent labs — various national and international gemological laboratories follow similar 4C-based grading protocols; the specific lab matters less than confirming the certificate exists and matches the stone.

What a Diamond Certificate Actually Contains

• The 4Cs: carat weight, cut grade, colour grade, and clarity grade
• A statement of origin (natural or laboratory-grown)
• A unique certificate or report number
• Measurements and proportions of the stone
• Often, a plotted diagram showing the location of any inclusions

What Is Laser Inscription?

Many certified diamonds, lab grown and natural, are laser-inscribed with their certificate number directly on the girdle (the thin edge) of the stone, invisible to the naked eye but visible under magnification. This allows the physical stone to be matched back to its certificate at any time, which is especially useful for insurance, resale, or simply confirming you have the exact stone described on your paperwork.

What Should I Check Before Buying a Lab Diamond?

1. Certification — confirm the diamond comes with a report from a recognised gemological lab, and that the certificate number matches the stone.
2. The 4Cs — carat, cut, colour, and clarity should all be stated clearly, not just carat weight alone.
3. Cut grade specifically — cut affects sparkle more than any other factor; don't skip checking it even if carat and clarity look good.
4. The metal setting — confirm the gold purity (9K, 10K, 14K, 18K) and finish (yellow, white, rose) match what you want.
5. Return and warranty policy — understand what's covered before you buy, not after.
6. Laser inscription — check whether the stone is laser-inscribed with its certificate number for easy future verification.
7. Seller transparency — a seller who shows you the certificate, explains the grading, and answers questions directly is a good sign.
8. Total cost clarity — make sure the price you're quoted includes the stone, the setting, and any making charges, with no hidden additions later.

How Do I Know If a Lab Diamond Is Good Quality?

Quality comes down to the 4Cs on the certificate, not the price tag alone. A well-cut stone with a colourless or near-colourless grade and few visible inclusions will look bright and clean to the eye. If you're unsure how to read a grading report, ask the seller to walk you through it — a transparent seller will do this without hesitation.

What Certificate Should a Lab Diamond Have?

At minimum, a certificate from a recognised gemological lab stating the full 4C grading and explicitly confirming the diamond is laboratory-grown. Avoid any diamond sold without a certificate, regardless of price.

Is a Higher Carat Always Better?

Not necessarily. A larger stone with a poor cut or low clarity can look less impressive than a smaller, well-cut, high-clarity stone. Many jewellers and gemologists consider cut the single most important factor in how a diamond actually looks, even ahead of carat weight.

Is Cut More Important Than Carat?

For visible brilliance, yes, in most cases. A diamond's cut determines how effectively it returns light as sparkle. A larger but poorly cut stone can look duller than a smaller, expertly cut one. If you have to prioritise, cut quality has the most visible day-to-day impact.

What Clarity Should I Choose?

For most jewellery, a clarity grade where inclusions are not visible to the naked eye (commonly graded VS1–VS2 or better) offers the best balance of appearance and value. Flawless clarity grades exist but the difference is typically only visible under magnification, not to the eye.

What Is the Best Colour for Everyday Jewellery?

A near-colourless grade gives a bright, clean look without the premium price of a completely colourless stone, and the difference is rarely noticeable to the naked eye, especially in smaller stones or warmer gold settings.

Diamond Shape Guide

Diamond shape affects appearance, perceived size, and how the stone wears day to day. Here's a practical breakdown:

Which Shape Looks the Largest?

Oval, marquise, and pear shapes tend to look larger than a round diamond of the same carat weight, because their elongated outline covers more visible surface area on the finger.

Which Shape Is Best for Daily Wear?

Round and cushion cuts are generally the most durable for daily wear, as they have fewer pointed corners that can catch or chip. Princess and pear cuts have pointed edges that benefit from protective settings if worn daily.

Which Shape Is Best for an Engagement Ring?

Round remains the most popular choice globally for its maximum brilliance and timeless appeal. Oval and cushion cuts have grown significantly in popularity for offering a distinctive look while retaining strong sparkle.

Which Shape Sparkles the Most?

Round brilliant cuts are engineered specifically to maximise light return and are widely considered the most brilliant shape. Cushion cuts also offer strong fire and brilliance with a softer, romantic outline.

Which Shape Is Trending Right Now?

Oval and cushion cuts have seen sustained popularity in recent years, alongside a growing interest in toi et moi (two-stone) designs and elongated radiant cuts.

Which Shape Suits Smaller Fingers?

Elongated shapes — oval, marquise, and pear — tend to visually lengthen the finger, making them a flattering choice for smaller or shorter fingers.

Diamond Setting Comparison

Setting	Best For	Considerations
Prong	Maximum light entry, classic solitaires	Prongs should be checked periodically for wear
Bezel	Daily wear, active lifestyles	Metal rim covers more of the stone, slightly less light return
Halo	Maximum perceived size and sparkle	Makes the centre stone look larger without higher carat cost
Pavé	Added sparkle along the band	More small stones means more settings to maintain over time
Tension	A modern, minimal look	Requires specialised repair if resizing is needed

Gold Purity Guide

Purity	Gold Content	Pros	Cons
9K	37.5%	Most affordable, hardest, very durable for daily wear	Lower gold content, slightly paler colour
10K	41.7%	Good durability, slightly richer tone than 9K	Still on the harder, less rich end of the spectrum
14K	58.3%	Strong balance of durability and rich colour, the global fine jewellery standard	Costs more than 9K and 10K
18K	75%	Richest colour, most premium look and feel	Softer metal, more prone to scratching, best for occasion pieces over daily wear

For daily wear: 9K or 14K offer the best durability. For budget: 9K is the most accessible entry point. For colour and richness: 18K delivers the deepest, most premium tone. For overall durability across the widest range of activities: 9K and 10K hold up best to daily knocks.

Lab Grown Diamonds as Gifts — Made Easy

Gifting a diamond used to come with two real obstacles: the price, and the fear of getting it wrong. Lab grown diamonds remove a significant part of both. Because a certified lab grown diamond costs meaningfully less than a natural one of the same specifications, a genuinely impressive diamond gift — the kind that would have stretched far beyond budget in natural form — becomes realistic for occasions that matter: a proposal, an anniversary, a milestone birthday, or simply a gift that says more than a card can.

The certification also makes gifting easier in a practical sense. A certified lab grown diamond comes with the same documentation a natural diamond would — confirming the 4Cs and authenticity — so the gift carries real, verifiable value, not just sentiment. The recipient isn't just getting a beautiful piece of jewellery; they're getting a genuine, certified diamond they can have appraised, insured, or resized with full confidence in what they own.

And because lab grown diamonds are available across a wide range of carat weights and price points, gifting is no longer an all-or-nothing decision between "a small natural diamond" and "no diamond at all." A thoughtfully chosen lab grown diamond, properly certified and well set, is a complete, confident gift at almost any budget.

Is It Okay to Gift a Lab Grown Diamond?

Yes, without reservation. A certified lab grown diamond is a genuine diamond with full documentation. There is nothing lesser about gifting one — the recipient receives the same hardness, brilliance, and certified authenticity as a natural diamond gift, simply at a price point that often allows for a larger or higher-quality stone than the same budget would buy in a natural diamond.

Who Should Buy a Lab Grown Diamond?

• First-time diamond buyers — a lower entry price makes a genuine diamond purchase accessible without compromise on the 4Cs.
• Young professionals — building a jewellery collection on a defined budget, without settling for a stone that isn't a real diamond.
• Proposal rings — a larger, better-cut stone becomes possible within the same budget.
• Anniversary gifts — a meaningful upgrade in carat or clarity compared to what the same spend would buy in a natural diamond.
• Wedding jewellery — sets, bands, and statement pieces where multiple stones are needed, where the savings compound significantly.
• Daily wear pieces — studs, pendants, and rings meant to be worn often, where the value-for-durability trade-off favours lab grown.
• Anyone wanting luxury on a defined budget — the look and durability of fine diamond jewellery without stretching beyond what's comfortable.
• Meaningful gifts at any price point — a certified diamond gift becomes achievable across a much wider range of budgets.

Real Questions Buyers Actually Ask

Will it look real?

Yes. It is real — chemically and optically identical to a natural diamond. There is no visual difference.

Can anyone tell it's lab-grown just by looking?

No. Not jewellers, not gemologists, not anyone, without specialised lab equipment designed specifically to detect trace growth patterns.

Is it worth spending a significant amount on a lab grown diamond?

If the goal is a genuine, certified diamond with real hardness, brilliance, and documentation, yes. You are getting the actual stone, not a compromise, at a meaningfully lower price than the natural equivalent.

What if I don't like it after receiving it?

Check the specific return and exchange policy of your seller before purchasing. A transparent seller will have a clear policy stated upfront.

Will it still sparkle after five years?

Yes. Diamond does not lose brilliance with age. Sparkle is a function of cut and cleanliness, not how long you've owned the stone. Regular cleaning maintains the original sparkle indefinitely.

Does it scratch?

No, not under normal wear. Diamond, lab grown or natural, is the hardest natural material and does not scratch from everyday contact. The only thing that can scratch a diamond is another diamond.

Can I upgrade it later?

Many jewellers offer upgrade or exchange programs; check with your specific seller about their policy before purchasing if this matters to you.

Is it a good investment?

No, and this applies equally to natural diamonds. Neither category should be purchased as a financial investment. The value is in the diamond itself and what it represents, not as a speculative asset. See the dedicated section on resale value below for the full explanation.

Is a 1-carat lab diamond too big for everyday wear?

Not inherently — it depends on the setting and your personal preference. A well-secured prong or bezel setting makes a 1-carat stone entirely practical for daily wear; the carat weight itself doesn't determine durability.

Frequently Asked Questions

Authenticity & Quality

Q: Are lab grown diamonds real diamonds?
A: Yes. They are chemically, physically, and optically identical to mined diamonds.

Q: Are lab grown diamonds fake?
A: No. They are genuine diamonds grown in a controlled environment rather than mined from the earth.

Q: Can lab diamonds pass a diamond tester?
A: Yes. Standard diamond testers measure thermal and electrical conductivity, properties identical in lab grown and natural diamonds, so both pass as diamond.

Q: Will jewellers buy lab grown diamonds back?
A: Policies vary by jeweller; check resale and buyback terms with your specific seller, as this varies as much for lab grown as it does for natural diamonds.

Q: Can lab diamonds be insured?
A: Yes. They can be insured the same way natural diamonds are, typically based on their certified value.

Q: Can lab diamonds be resized?
A: Yes. The setting can be resized by a jeweller exactly as with natural diamond jewellery.

Q: Can lab diamonds be repaired if damaged?
A: Yes, settings can be repaired and stones reset using standard jewellery repair processes.

Q: Will a lab grown diamond change colour over time?
A: No. Diamond, lab grown or natural, is chemically stable and does not change colour with normal wear and care.

Q: Are lab grown diamonds hypoallergenic?
A: The diamond itself is inert and non-reactive. Any allergy concerns typically relate to the metal setting, not the diamond.

Q: Can I wear a lab diamond in water?
A: Yes, the diamond itself is unaffected by water, though prolonged exposure to chlorine or saltwater can affect certain metal settings over time.

Q: Do lab grown diamonds have resale value?
A: Some, though like natural diamonds they typically resell well below original retail price. See the dedicated section above on value and investment.

Q: How long do lab grown diamonds last?
A: Indefinitely, under normal wear. Diamond does not degrade.

Q: Can people tell a diamond is lab-grown just by looking at jewellery?
A: No. The only way to confirm origin is through specialised gemological testing equipment, never the naked eye.

Q: Are lab diamonds suitable for engagement rings?
A: Yes. They are widely chosen for engagement rings specifically because they offer the same hardness and brilliance as natural diamonds at a more accessible price.

Q: Can I wear lab diamond jewellery daily?
A: Yes. The hardness and durability match natural diamonds exactly, making them fully suitable for daily wear.

Buying & Pricing

Q: Why are lab grown diamonds cheaper than natural diamonds?
A: The difference comes from the supply chain, not the stone. No mining costs, faster production, and fewer intermediaries between creation and sale.

Q: How much can I save buying lab grown instead of natural?
A: Typically 30 to 40 percent for comparable specifications, with savings often increasing at higher carat weights.

Q: Why do lab diamond prices vary so much?
A: Carat weight, cut quality, colour grade, and clarity grade, the same 4Cs that determine natural diamond pricing, all affect price independently of origin.

Q: What size lab diamond looks best?
A: This depends entirely on personal preference, hand size, and setting style. There is no universal best size, though 1 carat is a commonly chosen benchmark for engagement rings.

Q: Is a higher carat always better value?
A: Not necessarily. Cut and clarity affect visible beauty as much as or more than raw carat weight.

Q: What is the best lab diamond piece under a modest budget?
A: Solitaire stud earrings or a small pendant typically offer the most genuine diamond per rupee at accessible price points, since they require less metal and a smaller stone while still being certified.

Care & Maintenance

Q: Can I shower wearing lab diamond jewellery?
A: The diamond itself is unaffected, but soap residue can dull the setting's shine over time; it's generally better to remove jewellery before showering.

Q: Can I sleep wearing it?
A: It's generally best to remove jewellery before sleeping to avoid snagging on bedding or accidentally bending prongs.

Q: Can I swim wearing lab diamond jewellery?
A: The diamond is unaffected by water, but chlorine and saltwater can affect certain gold finishes and settings over time; removing jewellery before swimming is the safer practice.

Q: Can I wear it to the gym?
A: It's advisable to remove rings and bracelets during workouts to avoid impact damage to prongs or settings, even though the diamond itself is extremely hard.

Q: Does perfume affect lab diamond jewellery?
A: Perfume and lotion can build up residue on the stone and setting; apply perfume before putting jewellery on, not after.

Q: How do I clean lab diamond jewellery?
A: Warm water with a few drops of mild dish soap and a soft brush, gently scrubbed and rinsed, is sufficient for most regular cleaning.

Q: How should I store lab diamond jewellery?
A: Store separately in a soft pouch or a lined jewellery box compartment to prevent the diamond from scratching other softer jewellery pieces.

Q: Should I get lab diamond jewellery professionally cleaned?
A: Periodic professional cleaning and a prong check, roughly once a year, helps maintain both brilliance and setting security.

Why Buy Lab Grown Diamond Jewellery Direct from a Manufacturer

Very few jewellery brands can genuinely say this, but it matters more than most buyers realise:

• Made in our own manufacturing facility — every piece is designed, set, and finished under one roof, not outsourced.
• No middlemen — no distributor, no wholesaler, no retail chain adding margin between our workshop and your order.
• Better value — factory-direct pricing reflects what the piece actually costs to make, not what it costs to move through several layers of retail.
• Quality checks before dispatch — every piece is inspected in-house before it ships, by the same artisans who made it.
• Skilled artisans — our in-house team handles design, stone-setting, and finishing with direct accountability for the final piece.
• Factory-direct pricing — the saving from cutting out middlemen is passed directly into the price you pay.
• Direct customer support — questions about your order go straight to the people who made it, not a call centre several steps removed from production.

Expert Recommendations

• Best choice under a tighter budget: A solitaire stud earring or small pendant, where the certified diamond is the focus without the cost of a larger setting.
• Best for everyday wear: A bezel or low-prong setting in 9K or 14K gold, prioritising durability over showiness.
• Best engagement ring size: Most buyers find 1 carat the most universally flattering starting point, balancing visible presence with comfortable daily wear.
• Best diamond shape for maximum sparkle: Round brilliant cut, engineered specifically to maximise light return.
• Best gold purity for durability: 9K or 10K gold, for the hardest, most daily-wear-resistant finish.
• Best gift for a first-time jewellery buyer: A certified solitaire pendant or stud earrings, simple, versatile, and an easy introduction to fine jewellery.

Step-by-Step Buying Guide

A practical order to make your decision, step by step:

1. Choose your budget → 2. Choose your diamond shape → 3. Choose your carat weight → 4. Choose your colour grade → 5. Choose your gold purity → 6. Choose your setting style → 7. Confirm certification → 8. Place your order

Working through these steps in this order, rather than starting with carat weight alone, tends to produce a better outcome for the same budget, since cut and clarity affect visible beauty as much as size.

Lab Grown Diamond Jewellery at Ornate Jewels

Ornate Jewels is a factory-to-consumer jewellery brand. Our lab grown diamond jewellery — rings, earrings, bracelets, pendants, and nose pins — is set in genuine 9K, 10K, and 14K gold, in yellow, white, and rose gold finishes, designed and finished in-house. Every piece carries the diamond's certification and our Lifetime Warranty.

Browse our full lab grown diamond jewellery collection, or explore by category: rings, earrings, bracelets, and necklaces.

Looking for something specific — a particular carat weight, gold colour, or a fully custom design? See how our custom jewellery process works, or WhatsApp us directly at +91 86007 18666.