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 →Quote a ring →
All shapesAsscherCushionCushion modifiedEmeraldHeartHexagonalMarquiseOtherOvalPearPrincessRadiantRound
1.01ct Emerald E VS1 IGI-certified lab-grown diamond
1.01ct Emerald E VS1 IGI-certified lab-grown diamond
1.01ct Emerald · E VS1
IGI 822618706 · 6.62×4.84×3.25mm
1.09ct Emerald F VVS1 IGI-certified lab-grown diamond
2.1ct Emerald F VVS2 IGI-certified lab-grown diamond
2.1ct Emerald · F VVS2
IGI 799659814 · 8.58×6.11×4.09mm
2.1ct Emerald F VVS2 IGI-certified lab-grown diamond
2.1ct Emerald · F VVS2
IGI 750591383 · 8.63×6.11×4.07mm
2.1ct Emerald F VVS2 IGI-certified lab-grown diamond
2.1ct Emerald · F VVS2
IGI 799607121 · 8.58×6.13×4.14mm
2.57ct Emerald F VVS2 IGI-certified lab-grown diamond
3.1ct Emerald F VVS2 IGI-certified lab-grown diamond
3.1ct Emerald · F VVS2
IGI 755530469 · 9.89×7.06×4.59mm
3.1ct Emerald F VVS2 IGI-certified lab-grown diamond
4.02ct Emerald E VS2 IGI-certified lab-grown diamond
4.02ct Emerald · E VS2
IGI 823635358 · 10.36×7.67×5.2mm
$1,255Buy now
4.06ct Emerald F VS1 IGI-certified lab-grown diamond
4.06ct Emerald · F VS1
IGI 828640095 · 11.01×7.6×4.9mm
$1,280Buy now
5ct Emerald FANCY VS1 IGI-certified lab-grown diamond
5ct Emerald · FANCY VS1
IGI LG776652210 · 12.34×7.56×5.12mm
$2,051Buy now
5.01ct Emerald F VVS2 IGI-certified lab-grown diamond
5.01ct Emerald · F VVS2
IGI 828641567 · 11.46×7.91×5.62mm
$1,610Buy now
5.02ct Emerald E VS1 IGI-certified lab-grown diamond
5.02ct Emerald · E VS1
IGI LG802601279 · 11.75×8.31×5.21mm
$1,691Buy now
5.08ct Emerald F VVS2 IGI-certified lab-grown diamond
5.08ct Emerald · F VVS2
IGI 819697737 · 11.61×8.17×5.46mm
$1,823Buy now
8.23ct Emerald F VVS2 IGI-certified lab-grown diamond
8.23ct Emerald · F VVS2
IGI 719580516 · 13.83×9.51×6.31mm
$2,183Buy 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

5.0from 12 reviews
★★★★★
Gorgeous diamond. Fast shipping also!
@josnguyens
★★★★★
Absolutely beautiful! Came with the certification, going to get everything taken to a jeweler hopefully in the next few weeks! Can’t wait 🩷
@tc.roots.creations
★★★★★
As advertised
@charles.s.wilson
★★★★★
Diamond stone is gorgeous!!
@hollyblue7
★★★★★
Amazing love the lab diamond
@hieverybody85
★★★★★
Received it sooner than expected and all I can say is gorgeous!!! Pictures and videos do not do it justice. In person it is an eye catcher!!!!!!
@leamurray727
★★★★★
Gorgeous Stone very happy with purchase will buy again fast shipping
@kristencappiellow
★★★★★
I am giving five star First because the price is very, very reasonable second, the communication is the best And third, the product is what you paid for. It’s not fake. It’s real you guys can go anywhere and check it out. It’s the real deal!!! thank you matt diamonds!!!!
@ssapna62
★★★★★
Diamond was great and checked out with my jeweler! Getting a setting made for it and can’t wait to see the final result. Thanks Matts Diamonds!
@d58ve
★★★★★
Very pretty in person! Shipping was super fast and the products looks amazing! Just deciding on how to design it now
@micahcanizares
★★★★★
The perfect diamond for an incredible price
@hey_itsnisa
★★★★★
BEAUTIFUL STONE
@ericchefwilkerson

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.