Lab Grown Diamond Buying Guide
Read 8 min
Lab grown diamond jewellery offers the brilliance of diamond with a gentler price point — but only when you know what to look for. This guide explains how lab diamonds are made, how they compare with natural stones, and how to choose the right piece for rings, pendants, and earrings. At Pradeep Jewellers in Nadiad, we help families across Gujarat — including Ahmedabad and Vadodara — buy with clear certificates and honest advice.
What is a Lab Grown Diamond?
A lab grown diamond is a real diamond. It shares the same crystal structure, chemical composition, and optical properties as a natural mined diamond. The difference is origin: one forms underground over millions of years; the other is grown in a controlled laboratory environment over weeks.
Lab grown diamonds are not cubic zirconia or moissanite. They are graded on the same 4Cs — cut, colour, clarity, and carat — and should always be sold with a certificate from a recognised gemological laboratory.
For many buyers, lab grown diamond jewellery makes sense when you want a larger or higher-grade stone within a fixed budget, or when you prefer a transparent supply chain without compromising on sparkle.
How Lab Grown Diamonds are Made
Two main methods are used today. Each produces genuine diamond material; jewellers and certificates identify the growth method when relevant.
- HPHT (High Pressure High Temperature) — mimics natural conditions using pressure and heat on a diamond seed.
- CVD (Chemical Vapour Deposition) — carbon-rich gas deposits layer by layer onto a seed in a vacuum chamber.
Both methods can produce beautiful stones. What matters most to you as a buyer is the finished grade on the certificate, the quality of the cut, and how the stone looks in person — not the technical method alone.
Lab Grown Diamond vs Natural Diamond
Neither type is universally "better." The right choice depends on budget, purpose, personal values, and how long you plan to keep the piece. Below is an honest side-by-side comparison.
| Factor | Lab Grown Diamond | Natural Diamond |
|---|---|---|
| Composition | Pure carbon — same as natural | Pure carbon |
| Appearance | Brilliant when well cut | Brilliant when well cut |
| 4Cs grading | Yes — cut, colour, clarity, carat | Yes — same standards |
| Certification | IGI, GIA (lab-grown reports) | IGI, GIA, and others |
| Typical price | Lower at same grade/size | Higher at same grade/size |
| Resale value | Generally lower today | Generally stronger, varies by market |
| Rarity story | Reproducible in labs | Mined — finite supply |
| Best suited for | Fashion rings, daily wear, larger look on budget | Heirloom, traditional bridal, investment-minded buyers |
At Pradeep Jewellers we stock both natural and lab grown diamond jewellery where available. We label each piece clearly so you always know what you are buying.
Understanding the 4Cs
The 4Cs apply equally to lab grown and natural diamonds. Use them to compare quotes fairly.
- Cut — Determines sparkle. Prioritise excellent or very good cut before chasing top colour alone.
- Colour — Graded D (colourless) to Z (light tint). G–I often looks bright in yellow gold settings.
- Clarity — From Flawless to Included. Eye-clean VS or SI is enough for most finger sizes.
- Carat — Weight, not size. A well-spread stone can look larger than a deep, heavy one.
For lab grown diamonds, a strong cut and eye-clean clarity often deliver the best visible value — especially in rings and pendants you will wear daily.
Diamond Certification — Why It Matters
A certificate is your proof of what you purchased. Never buy a diamond — lab grown or natural — without independent lab documentation that matches the stone.
- IGI (International Gemological Institute) — widely used for lab grown diamonds; reports list 4Cs, proportions, and growth method where applicable.
- GIA (Gemological Institute of America) — offers dedicated lab-grown diamond reports; highly trusted globally for natural and laboratory-grown stones.
Check that the report number matches the laser inscription on the girdle when present. Keep the certificate with your invoice for insurance, resale, and future servicing. If a seller cannot provide a recognised certificate, walk away.
How to Choose the Right Lab Grown Diamond
Different jewellery types place different demands on the stone. Use these practical starting points.
Rings
Rings take the most daily impact. Choose a durable setting — bezel or protected prongs — and eye-clean clarity. For engagement-style rings, prioritise cut quality; a bright 0.70 ct often outshines a dull 1.00 ct.
Pendants
Pendants are less exposed to knocks. You can consider slightly larger carat weights for the same budget. Ensure the bail and chain weight suit the pendant so it sits flat on the neck.
Earrings
Matched pairs matter. Ask for stones with similar colour and clarity grades on the certificate. Studs suit everyday wear; drops and hoops can carry slightly larger stones without comfort issues.
Common Mistakes to Avoid
- Buying without a certificate from IGI, GIA, or an equally recognised lab.
- Comparing lab grown prices to natural stones without comparing the same 4C grades.
- Choosing carat weight over cut — a smaller, well-cut stone looks more brilliant.
- Ignoring setting quality — a beautiful stone in a weak mount can loosen over time.
- Assuming "diamond simulant" or "diamond-like" means lab grown — always confirm in writing.
- Skipping in-person viewing for important purchases when you can visit the showroom.
Why Buy from Pradeep Jewellers
Pradeep Jewellers has served families since 1983 from our Nadiad showroom. We are a trusted jewellery store for gold, diamond, and lab grown diamond jewellery — with personalised guidance at every step.
Explore our modern jewellery and lightweight jewellery collections for pieces that suit daily and office wear. Customers from Ahmedabad and Vadodara are welcome to visit Nadiad or start their enquiry on WhatsApp.
We explain weight, purity, making charges, and certificate details before you commit — so your purchase is as clear as the stone you choose.
Frequently Asked Questions
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are real diamonds with the same chemical composition and crystal structure as natural mined diamonds. They are graded on the same 4Cs and should be sold with a certificate from a recognised laboratory such as IGI or GIA.
How much do lab grown diamonds cost compared to natural diamonds?
At similar cut, colour, clarity, and carat grades, lab grown diamonds are typically priced lower than natural diamonds. Exact savings vary by size and market conditions. Always compare like-for-like grades on certificates, not headline carat weight alone.
Which certificate is best for lab grown diamonds?
IGI and GIA both issue trusted reports for laboratory-grown diamonds. The report should state that the stone is lab grown, list the 4Cs, and include a report number you can verify. Match the report to any laser inscription on the stone.
Can I buy lab grown diamond jewellery in Nadiad?
Yes. Visit Pradeep Jewellers at Santh Bazzar, Amdavadi Bazar Road, Nadiad, or browse our collection online. Message us on WhatsApp for availability and estimates on lab grown diamond rings, pendants, and earrings.
Do customers from Ahmedabad and Vadodara visit Pradeep Jewellers?
Yes. Many customers from Ahmedabad and Vadodara visit our Nadiad showroom or enquire online first. We offer clear guidance on design, certification, and budget whether you shop in person or remotely.
Is a lab grown diamond good for an engagement ring?
Lab grown diamonds are popular for engagement rings when couples want a larger or higher-grade stone within budget. Prioritise cut quality and a secure setting. Consider whether long-term resale value is important to you — natural diamonds generally hold resale value better today.
What is the difference between lab grown diamonds and diamond simulants?
Lab grown diamonds are real carbon diamonds. Simulants such as cubic zirconia or moissanite are different materials that only imitate sparkle. A trustworthy seller labels lab grown diamonds clearly and provides a gemological certificate.
How should I care for lab grown diamond jewellery?
Care is the same as for natural diamond jewellery: clean gently with mild soap and a soft brush, avoid harsh chemicals, store pieces separately to prevent scratching, and bring your jewellery for periodic prong checks at our showroom.