Do Lab Grown Diamonds Pass a Diamond Tester?

Picture the moment the small box, your heartbeat in your ears, the light catching a tiny burst of sparkle. You want that yes, and you also want peace of mind.

One question we hear again and again at our jewelry shop in Vancouver is: Will a lab-grown diamond pass a diamond tester?

The reassuring truth yes, in most cases it will. A tester can tell if a stone is diamond. What it cannot tell is where the diamond began underground or in a modern lab. Let us walk through this slowly, in easy words, so you feel confident from first look to final I do.

What A Diamond Tester Actually Tests

Most pocket testers check how fast heat travels through the stone. Diamond, natural or lab grown, moves heat very well, so the tester usually lights up diamond.
Some newer devices also check electrical conductivity to help separate diamond from look alikes like moissanite. This is useful knowledge to have when you’re comparing options at different diamond stores in Vancouver, where both natural and lab-grown gems are beautifully showcased side by side.

The simple truth

• Thermal testers often say diamond for both natural and lab grown.
• Combo testers heat plus electricity are better at spotting moissanite, but they still cannot say origin.
• No handheld tester can tell you natural versus lab grown. That is not a failure, it is simply not what they are built for.

Think of a tester like a door greeter. It can welcome you in with yes, you are a diamond, but it does not know your life story yet.

So Do Lab Grown Diamonds Pass A Diamond Tester

Yes.

Because lab grown diamonds are real diamonds with the same crystal structure and the same sparkle to the eye, they usually pass the standard tests designed to identify diamond. If a device is checking electricity as well, you may still see a diamond result. The tool is identifying what the stone is, not where it came from.

When Testers Get Confused And How To Avoid The Oops

Even good tools have off days. Here is when readings can wobble, and how to fix them

• Stone is tiny or set in heavy metal. Metal steals heat and can fool thermal testers.
• Tip Test from the top the crown and avoid touching metal.
• Dirt, lotion, or pocket lint. A thin film can interrupt readings.
• Tip Quick clean with a soft cloth or warm soapy water, then dry.
• Extreme temperatures. Very cold or warm stones act unpredictable.
• Tip Let the piece sit at room temperature for a minute.
• Old tech. Early thermal only pens can mistake moissanite for diamond.
• Tip Use a combo tester or better, lean on proper documentation.

Little rituals like these make testing boringly accurate, which is exactly what you want.

Recommended: Lab-Grown Diamonds: Real or Fake? The Truth Explained

The Only Foolproof Way To Know Origin Natural Versus Lab Grown

Handheld testers cannot reveal a diamond birth place. These can

Certification from a trusted lab GIA or IGI.

The report clearly states natural or lab grown and lists the 4Cs. Most stones carry a laser inscription of the report number, tiny, neat, and matchable.

Advanced lab instruments.

Jewelers and grading labs use specialized machines that reveal growth patterns your eyes cannot see.

Clear disclosure from your jeweler.

Reputable houses label and explain origin openly and provide the right paperwork.

At SMC Diamonds, every diamond, lab grown or natural, is certified and laser inscribed. Your heart can choose the style, while your mind rests easy on the facts.

Read More: Lab-Grown Diamonds: Real or Fake? The Truth Explained

Choosing Between Lab-grown And Natural Follow Your Story

This is not a right or wrong choice. It is a you choice.

Why couples pick lab grown

Bigger look for your budget, the same sparkle, modern craftsmanship, and transparent documentation.

Why couples pick natural

Formed over millennia, prized for rarity and tradition, often chosen for an heirloom feeling.

Not sure We will show both side by side, in your favorite shapes and settings. You will see what your heart keeps going back to.

Gentle Myths, Gently Broken

If it passes the tester, it must be natural

No. Lab grown passes too. Testers confirm diamond, not origin.

Lab-grown is fake

It is real diamond, the same carbon and the same sparkle, only a different birth place.

I can tell by eye

Even professionals rely on reports and instruments for origin. The eye sees beauty, the paper confirms facts.

Certification is just extra

It is your quiet safety net today and years from now when you resize, insure, or pass it on.

Must Read: How to Check a Diamond is Real or Fake at Home: Easy 10 At-Home Tests

The Calm Buyer Checklist Bookmark This

• Start with her vibe. Classic solitaire, halo glow, vintage curves, or sleek modern lines
• Put cut first. Cut decides sparkle. A great cut looks lively even at a smaller size.
• Balance the 4Cs to your eye. Small trade offs in color and clarity can fund a better cut or size.
• Ask for the paperwork. GIA or IGI certificate and matching laser inscription. Non negotiable peace.
• See it before it is made. Our 3D renderings show proportions, height, and angles, then unlimited revisions until it feels like her.
• Remember our 5 Promises. Certified and laser inscribed , Lifetime warranty, Annual complimentary cleaning and inspection , Resizing included,  North America wide price match 
• Care is love. A soft brush at home plus our complimentary checkups keep the fire alive.

Your Journey With Us Simple Steps, Steady Hands

• Find your diamond Tell us shape, size, color, clarity, and budget. We shortlist, you breathe.
• Book the diamond Love it We reserve it just for you.
• Design the setting Metal color, prongs, ring size, and personal touches.
• See a 3D render Walk around your ring on screen like it is already on your hand.
• Refine freely Ask for changes as many times as you like. No rush, no pressure.
• Final approval When your heart says yes, we begin.
• Craft with care Expert goldsmiths bring it to life.
• Quality check Every detail inspected.
• Presentation Your ring arrives with certification and documentation. Keepsakes you will keep.

A diamond tester can whisper, Yes, this is diamond.
Your certificate and laser inscription add the last steady word this is your diamond story.
Whether you fall for a brilliant lab grown or a timeless natural, we will help you design the piece that feels like forever calm minds, happy hearts, lots of sparkle.

FAQs

Will A Lab Grown Diamond Pass A Thermal Diamond Tester?

Yes. Thermal testers usually read both natural and lab grown as diamond because they share the same behavior with heat.

Can A Tester Tell Natural Versus Lab Grown?

No. Handheld testers tell diamond versus simulant. Origin needs a GIA or IGI report, a laser inscription, or advanced lab tools.

Can Moissanite Fool A Tester?

Older thermal only pens can get confused. Combo testers also check electricity and reduce mix ups, but they still will not reveal origin.

Are Lab Grown Diamonds Real?

Yes, they are real diamond with the same chemistry and sparkle as natural diamond, created with modern technology.

What Proof Should I Ask For?

A GIA or IGI certificate that states origin and a laser inscription that matches the report number.

What If I Am Shopping On A Budget?

Focus on cut first, then balance color and clarity. Compare natural and lab grown side by side and see where your joy meets your budget.