Colorless SI Diamonds

Q: What Colorless SI Diamonds do you offer?

Our Colorless SI Diamonds selection features 243 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.

Colorless SI lab-grown diamonds. SI clarity is eye-clean and offers the best value. A dependable quality tier that reads bright and clean to the eye.

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.

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

PrincessLab grown 0.69 ct D SI1 Excellent IGI €370

OvalLab grown 0.73 ct D SI1 Excellent IGI €320 HeartLab grown 0.85 ct E SI1 Excellent IGI €370

OvalLab grown 0.57 ct F SI1 Excellent IGI €300

RoundLab grown 0.74 ct F SI1 ID IGI €330

1.5ct Marquise Lab Grown Diamond — F SI1

MarquiseLab grown 1.56 ct F SI1 Excellent IGI €460

OvalLab grown 0.86 ct F SI1 Excellent IGI €370

OvalLab grown 0.65 ct F SI1 Excellent IGI €300

OvalLab grown 0.37 ct F SI1 Excellent IGI €268

HeartLab grown 3.03 ct D SI1 Excellent IGI €690

HeartLab grown 3.02 ct E SI1 Excellent IGI €620

HeartLab grown 2 ct E SI1 Excellent GIA €910

HeartLab grown 0.91 ct D SI1 Excellent IGI €380

HeartLab grown 0.8 ct F SI1 Excellent IGI €410

HeartLab grown 0.76 ct D SI1 Excellent IGI €360

AsscherLab grown 10.1 ct F SI1 Excellent IGI €3.236

AsscherLab grown 2 ct D SI1 Excellent IGI €550

AsscherLab grown 1.5 ct E SI1 Excellent IGI €440

AsscherLab grown 1 ct D SI1 Excellent IGI €370

AsscherLab grown 0.89 ct E SI1 Excellent IGI €370

MarquiseLab grown 3.01 ct F SI1 Excellent IGI €750

MarquiseLab grown 3.01 ct D SI1 Excellent IGI €980

MarquiseLab grown 2.75 ct F SI1 Excellent IGI €650

MarquiseLab grown 2.01 ct D SI1 Excellent IGI €530

1.5ct Marquise Lab Grown Diamond — D SI1

MarquiseLab grown 1.5 ct D SI1 Excellent IGI €620

1.2ct Marquise Lab Grown Diamond — D SI1

MarquiseLab grown 1.23 ct D SI1 Excellent IGI €370

MarquiseLab grown 1 ct D SI1 Excellent IGI €360

0.6ct Marquise Lab Grown Diamond — F SI1

MarquiseLab grown 0.63 ct F SI1 Excellent IGI €320

0.6ct Marquise Lab Grown Diamond — D SI1

MarquiseLab grown 0.62 ct D SI1 Excellent IGI €320

0.5ct Marquise Lab Grown Diamond — F SI1

MarquiseLab grown 0.5 ct F SI1 Excellent IGI €350

PrincessLab grown 3 ct F SI1 Excellent IGI €670

PrincessLab grown 3.01 ct E SI1 EX IGI €640

1.5ct Princess Lab Grown Diamond — F SI1

PrincessLab grown 1.5 ct F SI1 Excellent IGI €450

1.5ct Princess Lab Grown Diamond — D SI1

PrincessLab grown 1.5 ct D SI1 Excellent IGI €480

PrincessLab grown 1.09 ct F SI1 Excellent IGI €380

PrincessLab grown 1.01 ct D SI1 Excellent IGI €380

0.9ct Princess Lab Grown Diamond — E SI1

PrincessLab grown 0.92 ct E SI1 Excellent IGI €400

0.4ct Princess Lab Grown Diamond — D SI1

PrincessLab grown 0.46 ct D SI1 Excellent IGI €280

HeartLab grown 3.03 ct F SI1 Excellent IGI €680

HeartLab grown 2 ct D SI1 Excellent IGI €560

HeartLab grown 1.5 ct F SI1 Excellent IGI €450

HeartLab grown 1.5 ct D SI1 EX GIA €710

HeartLab grown 1.5 ct E SI1 Excellent IGI €450

HeartLab grown 1.21 ct E SI1 Excellent IGI €360

HeartLab grown 1.25 ct D SI1 Excellent IGI €660

HeartLab grown 1 ct F SI1 Excellent IGI €370

HeartLab grown 1 ct E SI1 Excellent IGI €380

HeartLab grown 1 ct D SI1 Excellent IGI €370

HeartLab grown 0.72 ct E SI1 Excellent IGI €380

HeartLab grown 0.69 ct E SI1 Excellent IGI €310

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Colorless SI diamonds: what the grade means

SI clarity is eye-clean and offers the best value. This tier is chosen to look bright and clean to the eye while keeping excellent value — the sweet spot where a higher grade would cost more without a visible difference.

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.

Why this quality tier

Eye-clean — no inclusions visible without magnification.
White face-up — no warmth to the naked eye, even set in white gold or platinum.
Better value — you spend on the grades that show, not the ones only a loupe reveals.

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 colorless si diamonds do you offer?

Our colorless si diamonds selection features 243 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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Colorless SI Diamonds

Colorless SI diamonds: what the grade means

Why this quality tier

Questions, answered

Join Our Newsletter

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Sorry, looks like we don't have enough of this product.

Colorless SI diamonds: what the grade means

Why this quality tier

Questions, answered

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