Can A Jeweler Tell The Difference Between Lab-Grown Diamonds?
Lab grown diamonds have become a brilliant choice for custom engagement rings — but can a jeweler really tell them apart from natural-mined diamonds?
At The Diamond Guys, we believe the best diamond choice is an informed one. Here’s what you need to know.
Quick Take: They’re Identical To The Naked Eye
A lab grown diamond is a real diamond. Same crystal structure. Same sparkle. Same durability.
So, can a jeweler spot it by eye?
No. Not without tools.
How Lab Grown Diamonds Are Identified
Jewelers use a few proven techniques:
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Magnification — Under a loupe, experts may see subtle growth lines or tiny inclusions from the lab process.
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UV Light — Some lab diamonds glow differently under UV — but not always.
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Spectrometers — The surest method. Lab equipment picks up atomic clues unique to lab growth.
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Laser Inscriptions — Certified lab grown diamonds are often engraved “Lab Grown” on the girdle.
Why Both Pass A Tester
A diamond tester checks thermal and electrical conductivity. Since lab grown and mined diamonds share the same carbon structure, they both pass.
Only simulants like moissanite or cubic zirconia fail.
Why Certification Matters Most
Seeing is not enough — only trusted reports prove origin.
A GIA or IGI report shows:
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The 4Cs (cut, color, clarity, carat)
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Growth method (lab or mined)
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Matching laser inscription
When your diamond is certified, there’s no mystery — just pure sparkle and peace of mind.
Real Confidence, Real Service
Whether you choose a lab grown or natural-mined diamond, you deserve the same promise:
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Full disclosure
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Certified quality
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Custom engagement rings in white, yellow, or rose gold — or platinum, never silver
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Diamond xperts
Visit The Diamond Guys
Ready to compare lab grown and natural-mined side by side? Let’s talk real facts, real value — and design the ring that tells your story.
Scottsdale Showroom
14601 N. Scottsdale Rd, Suite 125
Scottsdale, AZ 85254
480-656-0652
Los Angeles Showroom
16255 Ventura Blvd, Suite 515
Encino, CA 91436
213-510-3555
The natural and lab grown diamond experts.
