The PAIJE Journal

Everything You Need to Know About Lab-Grown Diamonds

Diamond guides, trend reports, and honest answers to every question you were afraid to ask.

Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
Lab-Grown Diamonds
IGI Certified
The 4 Cs Explained
Ethical Origin
Buying Guide 2026
About Lab-Grown Diamonds

What is a lab-grown diamond?

A lab-grown diamond is a real diamond — chemically, physically, and optically identical to a mined diamond. The only difference is where it was created. Instead of forming over billions of years under the earth's crust, it's grown in a controlled laboratory environment using either CVD (Chemical Vapor Deposition) or HPHT (High Pressure High Temperature) technology.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are 100% real diamonds. They have the same crystal structure, the same hardness (10 on the Mohs scale), the same refractive index, and the same fire and brilliance as mined diamonds. Even gemologists cannot distinguish them without specialized equipment. They are graded by the same international laboratories (IGI, GIA) using the same 4C criteria.

How are lab-grown diamonds made?

PAIJE sources diamonds grown primarily via CVD. A tiny carbon seed is placed inside a chamber filled with carbon-rich gas. Microwaves ionize the gas into plasma, causing carbon atoms to deposit onto the seed layer by layer — growing a rough diamond crystal over 2–4 weeks. The rough stone is then cut and polished by master craftsmen.

Are lab-grown diamonds less valuable?

Lab-grown diamonds cost 60–80% less than mined diamonds of equivalent quality. This isn't because they're lesser — it's because they don't carry the supply chain markups of the mining industry. You get a larger, higher-quality stone for your budget. The sentimental and aesthetic value is identical.

Diamond Quality & Certification

What are the 4 Cs?

Cut — The most important factor. A well-cut diamond reflects light brilliantly regardless of color or clarity. PAIJE only offers Excellent and Very Good cut grades.

Color — Graded D (colorless) to Z (yellow). We recommend D–F for the whitest look, G–H for excellent value with near-colorless appearance.

Clarity — Measures internal inclusions. VS1–VS2 offer eye-clean stones at great value. FL–IF grades are flawless but rarely necessary.

Carat — Refers to weight, not size. Cut quality affects how large a diamond appears visually.

What is IGI certification?

IGI (International Gemological Institute) is the world's largest independent gem certification laboratory. Every PAIJE diamond 0.30ct and above comes with an IGI certificate documenting its exact 4C grades, measurements, and origin. IGI certificates are recognized worldwide and accepted by insurers, appraisers, and jewelers in New York, London, Dubai, and beyond.

Orders, Shipping & Care

Do you ship to New York, London, Paris, Warsaw, Kyiv, Barcelona?

Yes — we ship worldwide. USA: all 50 states including New York, Los Angeles, Miami and Chicago via insured FedEx Express, 3–5 business days. Europe: London, Paris, Milan, Berlin, Barcelona, Warsaw, Amsterdam and more — 5–8 business days, shipped DDP (duties and VAT paid at checkout, no surprise charges). Ukraine: Kyiv and other cities — 7–14 business days; contact care@paije.co before ordering to confirm the best option. Middle East: Dubai and UAE — 5–8 business days, DDP. Free shipping on all orders over $500.

How do I care for my lab-grown diamond jewelry?

Lab-grown diamonds require the same care as mined diamonds. Clean with warm water, a drop of dish soap, and a soft brush. Avoid ultrasonic cleaners for pieces with small side stones. Store each piece separately to prevent scratching. Visit our full Care Guide for metal-specific instructions.

What is your return policy?

We offer 30-day returns on all unworn pieces in original condition. Initiate a return through your account or by contacting our concierge team at care@paije.co. Bespoke and engraved items are final sale.

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