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
1.1ct Pear E VS2 IGI-certified lab-grown diamond
1.1ct Pear · E VS2
IGI 788677477 · 9×5.86×3.55mm
2.01ct Pear FANCY VVS2 IGI-certified lab-grown diamond
2.01ct Pear · FANCY VVS2
IGI LG795623661 · 11.01×6.93×4.43mm
$1,028Buy now
2.02ct Pear F VVS2 IGI-certified lab-grown diamond
2.02ct Pear · F VVS2
IGI 799691092 · 10.65×6.96×4.46mm
3ct Pear FANCY VS2 IGI-certified lab-grown diamond
3ct Pear · FANCY VS2
IGI LG814631684 · 13.33×8.06×4.76mm
$1,320Buy now
3.09ct Pear F VS1 IGI-certified lab-grown diamond
3.09ct Pear · F VS1
IGI 749505558 · 12.74×8.05×5.03mm
4ct Pear F VVS2 IGI-certified lab-grown diamond
4ct Pear · F VVS2
IGI 798605481 · 13.54×8.97×5.57mm
$1,286Buy now
4.01ct Pear F VVS2 IGI-certified lab-grown diamond
4.01ct Pear · F VVS2
IGI 789626985 · 13.92×8.77×5.6mm
$1,264Buy now
5ct Pear F VS2 IGI-certified lab-grown diamond
5ct Pear · F VS2
IGI 801605541 · 14.42×9.63×6.13mm
$1,592Buy 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.