0.4ct Diamonds

Q: What 0.4ct Diamonds do you offer?

Our 0.4ct Diamonds selection features 187 certified lab-grown diamonds in stock, each independently graded by IGI or GIA and hand-inspected in Sweden before it ships.

Q: Are lab-grown diamonds real diamonds?

Yes. A lab-grown diamond is chemically, physically and optically identical to a mined diamond. The only difference is origin: it is grown above ground in weeks rather than mined over millennia, typically 60–80% less than the mined equivalent.

0.4ct lab-grown diamonds. A 0.4ct diamond is a delicate, everyday size that stays refined and understated. Every 0.4ct stone is independently certified and shown with transparent, VAT-inclusive pricing.

Every stone is independently certified by IGI or GIA, hand-inspected in Sweden before dispatch, and shipped fully insured with free delivery and 30-day returns. Use the "see it true to size" tool on any stone to judge how a 0.4ct diamond looks on the hand.

IGI/GIA certified · Inspected in Sweden · Free insured shipping

OvalLab grown 0.37 ct F SI1 Excellent IGI €268 RoundLab grown 0.4 ct G SI1 EX GIA €740

RoundLab grown 0.41 ct H VVS2 EX IGI €320 RoundLab grown 0.4 ct G VS2 EX GIA €710 RoundLab grown 0.42 ct H VVS1 EX GIA €710

RoundLab grown 0.43 ct G VVS2 EX IGI €320 RoundLab grown 0.3 ct H VS2 EX GIA €637 RoundLab grown 0.4 ct H SI1 VG GIA €680 RoundLab grown 0.4 ct H VS1 VG GIA €760 OvalLab grown 0.44 ct G VVS1 Excellent IGI €270

RoundLab grown 0.42 ct G VS1 EX GIA €880

HeartLab grown 0.44 ct H VS2 Excellent IGI €330

HeartLab grown 0.43 ct E VS2 Excellent IGI €310

HeartLab grown 0.48 ct F VS1 Excellent IGI €300

HeartLab grown 0.42 ct D VVS1 Excellent IGI €340

HeartLab grown 0.42 ct E VVS1 Excellent IGI €320

0.4ct Asscher Lab Grown Diamond — F VVS2

AsscherLab grown 0.41 ct F VVS2 Excellent IGI €280

0.4ct Asscher Lab Grown Diamond — E VVS2

AsscherLab grown 0.43 ct E VVS2 Excellent IGI €320

AsscherLab grown 0.4 ct D VS1 Excellent IGI €280

0.4ct Marquise Lab Grown Diamond — G VS2

MarquiseLab grown 0.42 ct G VS2 Excellent IGI €320

0.4ct Marquise Lab Grown Diamond — H VVS2

MarquiseLab grown 0.4 ct H VVS2 Excellent IGI €310

0.4ct Marquise Lab Grown Diamond — G VVS1

MarquiseLab grown 0.32 ct G VVS1 VG IGI €342

0.4ct Marquise Lab Grown Diamond — F VS1

MarquiseLab grown 0.42 ct F VS1 Excellent IGI €350

0.4ct Marquise Lab Grown Diamond — E VVS1

MarquiseLab grown 0.4 ct E VVS1 Excellent IGI €320

0.4ct Marquise Lab Grown Diamond — E VS2

MarquiseLab grown 0.43 ct E VS2 Excellent IGI €310

0.4ct Marquise Lab Grown Diamond — D VS1

MarquiseLab grown 0.4 ct D VS1 Excellent IGI €280

0.4ct Princess Lab Grown Diamond — G VVS1

PrincessLab grown 0.43 ct G VVS1 Excellent IGI €330

0.4ct Princess Lab Grown Diamond — F VVS1

PrincessLab grown 0.35 ct F VVS1 Excellent IGI €388

0.4ct Princess Lab Grown Diamond — E VS1

PrincessLab grown 0.42 ct E VS1 Excellent IGI €340

0.4ct Princess Lab Grown Diamond — D VVS2

PrincessLab grown 0.4 ct D VVS2 Excellent IGI €300

0.4ct Princess Lab Grown Diamond — D SI1

PrincessLab grown 0.46 ct D SI1 Excellent IGI €280

HeartLab grown 0.46 ct G VVS2 Excellent IGI €340

HeartLab grown 0.44 ct F VVS2 Excellent IGI €320

HeartLab grown 0.48 ct F VS2 Excellent IGI €320

HeartLab grown 0.33 ct E SI1 Excellent IGI €268

HeartLab grown 0.41 ct D VS2 Excellent IGI €310

HeartLab grown 0.4 ct E VS1 Excellent IGI €290

HeartLab grown 0.41 ct E VVS2 Excellent IGI €320

HeartLab grown 0.41 ct D VS1 Excellent IGI €310

HeartLab grown 0.42 ct D VVS2 Excellent IGI €330

AsscherLab grown 0.31 ct H VS2 Excellent IGI €259

AsscherLab grown 0.32 ct F VS2 Excellent IGI €268

AsscherLab grown 0.42 ct E VS2 Excellent IGI €290

0.4ct Asscher Lab Grown Diamond — E VVS1

AsscherLab grown 0.42 ct E VVS1 Excellent IGI €460

AsscherLab grown 0.43 ct E VS1 Excellent IGI €310

0.4ct Asscher Lab Grown Diamond — D VVS1

AsscherLab grown 0.41 ct D VVS1 Excellent IGI €460

AsscherLab grown 0.4 ct D VS2 Excellent IGI €290

0.4ct Asscher Lab Grown Diamond — D VVS2

AsscherLab grown 0.42 ct D VVS2 Excellent IGI €430

0.4ct Marquise Lab Grown Diamond — H SI1

MarquiseLab grown 0.47 ct H SI1 Excellent IGI €470

0.4ct Marquise Lab Grown Diamond — H VS1

MarquiseLab grown 0.45 ct H VS1 Excellent IGI €330

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0.4ct lab-grown diamonds explained

A 0.4ct diamond is a delicate, everyday size that stays refined and understated. Carat is weight, not size — how large a 0.4ct diamond looks depends on its cut and shape, so two 0.4ct stones can face up quite differently. Use the "see it true to size" tool on any product to judge the real face-up dimensions on a finger.

Every diamond here is lab-grown — a real diamond with the same carbon crystal structure, hardness and fire as a mined stone, created above ground in a matter of weeks rather than extracted over millennia. Because origin is the only difference, you typically pay 60–80% less than the mined equivalent for the same look, and every stone is conflict-free and traceable.

Getting the most from a 0.4ct diamond

Favour an excellent cut — a well-cut stone looks bigger and brighter than a poorly cut one of the same weight.
Elongated shapes (oval, marquise, pear) tend to look larger than round for the same carat.
Stay eye-clean — VS clarity or better keeps the stone flawless to the naked eye.
Set your budget by the 4Cs together rather than chasing carat alone.

Each stone is independently certified by IGI or GIA, hand-inspected and photographed by our team in Sweden before dispatch, and shipped fully insured with free delivery and 30-day returns. Every diamond is one of a kind — the exact stone you see is the stone you receive, ready to wear loose or set into a ring with help from our gemologists.

Questions, answered

What 0.4ct diamonds do you offer?

Our 0.4ct diamonds selection features 187 certified lab-grown diamonds in stock right now, each independently graded by IGI or GIA and hand-inspected in Sweden before it ships.

Are lab-grown diamonds real diamonds?

Yes. A lab-grown diamond is a real diamond — chemically, physically and optically identical to a mined one. The only difference is origin: it is grown above ground in a matter of weeks instead of mined over millennia, typically 60–80% less than the mined equivalent.

How are your diamonds certified?

Every stone is independently graded by IGI or GIA and ships with its certificate. You can verify the report number directly on the lab's public website.

Are these diamonds conflict-free?

Yes. Because they are lab-grown, our diamonds are entirely conflict-free and traceable, with a far lower environmental footprint than mined stones.

Can I return a diamond or set it in a ring?

Yes. Every order includes free insured shipping and 30-day returns. Each stone is loose and ready to set — choose "Set this stone in a ring" on any product and our gemologists help you build the setting.

“
The sparkle is incredible, and the whole experience felt professional from start to finish.
”

Sofia

★★★★★

“
Loving this!
”

Rebecca

“
We chose Vaalberg for our engagement ring, and we're so glad we did. The craftsmanship is outstanding, and the diamond sparkles beautifully.
”

Emily

“
I was initially hesitant about buying a lab-grown diamond, but it exceeded all my expectations. The ring and the diamond is breathtaking.
”

Sandra

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0.4ct Diamonds

0.4ct lab-grown diamonds explained

Getting the most from a 0.4ct diamond

Questions, answered

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0.4ct lab-grown diamonds explained

Getting the most from a 0.4ct diamond

Questions, answered

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