IGI Certified · Laboratory-Grown · 360° Video on Every Stone · Free Insured US Shipping · IGI Certified · Laboratory-Grown · 360° Video on Every Stone · Free Insured US Shipping · IGI Certified · Laboratory-Grown · 360° Video on Every Stone · Free Insured US Shipping · IGI Certified · Laboratory-Grown · 360° Video on Every Stone · Free Insured US Shipping ·

Certified lab-grown diamonds,
auctioned live. Shop anytime.

Every stone is laboratory-grown, IGI-certified, and shown in 360° video. What you see is the exact stone you receive.

Design your own ring →
All shapesAsscherCushionCushion modifiedCusqEmeraldHeartMarquiseOtherOvalPearPrincessRadiantRound
1.06ct Radiant F VVS2 IGI-certified lab-grown diamond
2ct Radiant F VVS2 IGI-certified lab-grown diamond
2ct Radiant · F VVS2
IGI 807678078 · 8.85×6.27×4.19mm
2ct Radiant F VVS2 IGI-certified lab-grown diamond
2ct Radiant · F VVS2
IGI 808610245 · 8.84×6.33×4.12mm
2.55ct Radiant F VS1 IGI-certified lab-grown diamond
2.55ct Radiant · F VS1
IGI 798611595 · 9.62×6.75×4.58mm
2.59ct Radiant E VS1 IGI-certified lab-grown diamond
2.59ct Radiant · E VS1
IGI 800603178 · 9.47×6.94×4.61mm
3.01ct Radiant F VVS2 IGI-certified lab-grown diamond
3.01ct Radiant · F VVS2
IGI 801665166 · 10.23×7.07×4.72mm
3.02ct Radiant FANCY VVS2 IGI-certified lab-grown diamond
3.02ct Radiant · FANCY VVS2
IGI LG804662816 · 10.35×7.32×4.48mm
$1,181Buy now
3.1ct Radiant G VS1 IGI-certified lab-grown diamond
3.1ct Radiant · G VS1
IGI 773658222 · 10.43×7.2×4.79mm
7ct Radiant F VS1 IGI-certified lab-grown diamond
7ct Radiant · F VS1
IGI 803611155 · 13.85×9.52×6.34mm
$2,317Buy now

Looking for something specific?

Beyond what we auction live, browse thousands more certified natural & lab-grown diamonds — every shape, size and budget, shipped fully insured.

Browse the full collection →

That's what we guarantee

All diamonds sold by Matts Diamonds are laboratory-grown (man-made) diamonds — chemically and optically identical to mined diamonds, conflict-free, and independently graded by IGI. Every listing links to its verifiable IGI report and a 360° video of the exact stone. Free insured shipping within the USA.

What buyers say

Bought from us? We'd love to hear how it went.

Frequently asked questions

Are lab-grown diamonds real diamonds?

Yes. Laboratory-grown diamonds are chemically, physically, and optically identical to mined diamonds — they are real diamonds, simply grown in a lab rather than mined. Every stone from Matts Diamonds is independently graded by IGI.

What does IGI-certified mean?

IGI (the International Gemological Institute) is an independent laboratory that grades each diamond's carat, color, clarity, and cut. Every listing links to its verifiable IGI report so you can confirm the grading yourself.

Will I receive the exact diamond shown?

Yes. Each listing shows the specific stone you will receive, along with a 360° video and its own IGI report — not a stock photo.

How do the live auctions work?

Stones are auctioned live on TikTok (@matsdiamonds), and the full collection is also available to shop anytime here on the site.

How is shipping handled?

Diamonds ship with free insured shipping within the USA, and you can track your order anytime from the Track my order page.