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.

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All shapesAsscherCushionCushion modifiedCusqEmeraldHeartMarquiseOtherOvalPearPrincessRadiantRound
0.5ct Round D VS2 IGI-certified lab-grown diamond
0.5ct Round · D VS2
IGI 792629696 · 5.13×5.1×3.1mm
0.5ct Round D VS2 IGI-certified lab-grown diamond
0.5ct Round · D VS2
IGI 783643320 · 5.13×5.11×3.15mm
0.5ct Round D VS2 IGI-certified lab-grown diamond
0.5ct Round · D VS2
IGI 781612515 · 5.14×5.1×3.14mm
0.5ct Round D VS2 IGI-certified lab-grown diamond
0.5ct Round · D VS2
IGI 794644072 · 5.13×5.1×3.14mm
0.51ct Round D VS2 IGI-certified lab-grown diamond
0.51ct Round · D VS2
IGI 792629717 · 5.17×5.13×3.19mm
0.51ct Round D VS2 IGI-certified lab-grown diamond
0.51ct Round · D VS2
IGI 794666322 · 5.18×5.13×3.2mm
0.51ct Round D VS2 IGI-certified lab-grown diamond
0.51ct Round · D VS2
IGI 792629816 · 5.18×5.13×3.16mm
0.51ct Round D VS2 IGI-certified lab-grown diamond
0.51ct Round · D VS2
IGI 790655661 · 5.17×5.14×3.21mm
0.52ct Round D VS2 IGI-certified lab-grown diamond
0.52ct Round · D VS2
IGI 795658238 · 5.2×5.18×3.22mm
0.53ct Round D VS2 IGI-certified lab-grown diamond
0.53ct Round · D VS2
IGI 795658017 · 5.23×5.2×3.21mm
0.55ct Round D VS2 IGI-certified lab-grown diamond
0.55ct Round · D VS2
IGI 795658513 · 5.3×5.27×3.25mm
0.55ct Round D VS2 IGI-certified lab-grown diamond
0.59ct Round D VS2 IGI-certified lab-grown diamond
0.59ct Round · D VS2
IGI 782680550 · 5.42×5.39×3.32mm
1ct Emerald D VS2 IGI-certified lab-grown diamond
1ct Emerald · D VS2
IGI 800642923 · 6.63×4.72×3.25mm
1ct Heart D VS2 IGI-certified lab-grown diamond
1ct Heart · D VS2
IGI 802636868 · 6.36×6.93×3.99mm
1ct Oval FANCY VS1 IGI-certified lab-grown diamond
1ct Oval · FANCY VS1
IGI LG813640415 · 8.07×5.52×3.5mm
1.01ct Cushion D VS1 IGI-certified lab-grown diamond
1.01ct Cushion · D VS1
IGI 809642595 · 6.82×5.16×3.51mm
1.02ct Round D VVS2 IGI-certified lab-grown diamond
1.02ct Round · D VVS2
IGI 799698030 · 6.39×6.36×3.99mm
1.02ct Round D VVS2 IGI-certified lab-grown diamond
1.03ct Marquise E VS2 IGI-certified lab-grown diamond
1.04ct Oval E VS2 IGI-certified lab-grown diamond
1.04ct Oval · E VS2
IGI 769637678 · 8.18×5.67×3.54mm
1.05ct Oval E VS2 IGI-certified lab-grown diamond
1.05ct Oval · E VS2
IGI 769637061 · 8.2×5.68×3.55mm
1.05ct Oval E VS2 IGI-certified lab-grown diamond
1.05ct Oval · E VS2
IGI 763618057 · 7.94×5.84×3.58mm
1.06ct Marquise E VS2 IGI-certified lab-grown diamond
1.06ct Marquise · E VS2
IGI 772652878 · 10.28×5.35×3.39mm
1.06ct Marquise E VS2 IGI-certified lab-grown diamond
1.06ct Radiant F VVS2 IGI-certified lab-grown diamond
1.07ct Princess E VS2 IGI-certified lab-grown diamond
1.1ct Pear E VS2 IGI-certified lab-grown diamond
1.1ct Pear · E VS2
IGI 788677477 · 9×5.86×3.55mm
1.1ct Princess E VVS2 IGI-certified lab-grown diamond
1.21ct Emerald D VS2 IGI-certified lab-grown diamond
1.21ct Emerald · D VS2
IGI 652439016 · 7.09×5.03×3.49mm
1.59ct Round E VS1 IGI-certified lab-grown diamond
1.59ct Round · E VS1
IGI 783655493 · 7.58×7.54×4.53mm
1.59ct Round E VS1 IGI-certified lab-grown diamond
1.59ct Round · E VS1
IGI 783624446 · 7.51×7.48×4.61mm
1.98ct Emerald D VVS2 IGI-certified lab-grown diamond
1.98ct Emerald · D VVS2
IGI LG743544375 · 8.43×6.02×3.99mm
2ct Marquise E VS2 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
2.01ct Cusq F VS1 IGI-certified lab-grown diamond
2.01ct Cusq · F VS1
IGI 776699151 · 7.31×7.19×4.93mm
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 Asscher E VS1 IGI-certified lab-grown diamond
2.02ct Asscher · E VS1
IGI 776619813 · 6.86×6.84×4.69mm
2.02ct Emerald FANCY VS1 IGI-certified lab-grown diamond
2.02ct Other E VS1 IGI-certified lab-grown diamond
2.02ct Other · E VS1
IGI LG776614942 · 7.6×7.65×4.68mm
2.02ct Pear F VVS2 IGI-certified lab-grown diamond
2.02ct Pear · F VVS2
IGI 799691092 · 10.65×6.96×4.46mm
2.02ct Round E VVS2 IGI-certified lab-grown diamond
2.02ct Round · E VVS2
IGI 768611992 · 8.1×8.07×5.03mm
2.02ct Round E VVS2 IGI-certified lab-grown diamond
2.02ct Round · E VVS2
IGI 768691443 · 8.14×8.09×4.92mm
2.04ct Marquise E VS2 IGI-certified lab-grown diamond
2.04ct Marquise · E VS2
IGI 762551205 · 13.58×6.47×4.15mm
2.05ct Oval F VVS2 IGI-certified lab-grown diamond
2.05ct Oval · F VVS2
IGI 752580124 · 10.34×7.23×4.39mm
2.06ct Princess E VS2 IGI-certified lab-grown diamond
2.06ct Princess E VS2 IGI-certified lab-grown diamond
2.09ct Emerald F VS1 IGI-certified lab-grown diamond
2.09ct Emerald · F VS1
IGI 795695138 · 8.59×6.05×4.09mm
2.1ct Cushion F VVS2 IGI-certified lab-grown diamond
2.1ct Cushion · F VVS2
IGI 789613428 · 9.12×6.56×4.37mm
2.1ct Heart E VS1 IGI-certified lab-grown diamond
2.1ct Heart · E VS1
IGI 715541977 · 8.07×8.79×5.2mm
2.51ct Emerald F VVS2 IGI-certified lab-grown diamond
2.51ct Oval E VVS2 IGI-certified lab-grown diamond
2.51ct Oval · E VVS2
IGI 811666758 · 11.08×7.67×4.75mm
2.52ct Emerald F VVS2 IGI-certified lab-grown diamond
2.55ct Radiant F VS1 IGI-certified lab-grown diamond
2.55ct Radiant · F VS1
IGI 798611595 · 9.62×6.75×4.58mm
2.58ct Oval F VVS2 IGI-certified lab-grown diamond
2.58ct Oval · F VVS2
IGI 809602280 · 11.1×7.7×4.76mm
2.59ct Radiant E VS1 IGI-certified lab-grown diamond
2.59ct Radiant · E VS1
IGI 800603178 · 9.47×6.94×4.61mm
3ct Cushion modified FANCY VS2 IGI-certified lab-grown diamond
3ct Marquise E VS2 IGI-certified lab-grown diamond
3ct Marquise · E VS2
IGI 750553131 · 15.29×7.39×4.74mm
3ct Pear FANCY VS2 IGI-certified lab-grown diamond
3ct Pear · FANCY VS2
IGI LG814631684 · 13.33×8.06×4.76mm
$1,320Buy now
3.01ct Other F VS1 IGI-certified lab-grown diamond
3.01ct Other · F VS1
IGI LG800604926 · 13.59×7.7×3.99mm
$1,788Buy now
3.01ct Radiant F VVS2 IGI-certified lab-grown diamond
3.01ct Radiant · F VVS2
IGI 801665166 · 10.23×7.07×4.72mm
3.01ct Round F VVS2 IGI-certified lab-grown diamond
3.01ct Round · F VVS2
IGI 755518093 · 9.32×9.26×5.59mm
$1,006Buy now
3.01ct Round F VVS2 IGI-certified lab-grown diamond
3.01ct Round · F VVS2
IGI 753503727 · 9.26×9.21×5.73mm
$1,006Buy now
3.02ct Marquise F VVS2 IGI-certified lab-grown diamond
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
3.04ct Emerald FANCY VS1 IGI-certified lab-grown diamond
3.04ct Emerald · FANCY VS1
IGI LG814640567 · 9.37×6.68×4.73mm
$1,143Buy now
3.04ct Oval FANCY VVS2 IGI-certified lab-grown diamond
3.04ct Oval · FANCY VVS2
IGI LG807627472 · 10.81×7.37×4.8mm
$1,276Buy now
3.05ct Cushion E VS2 IGI-certified lab-grown diamond
3.05ct Cushion · E VS2
IGI 798603001 · 10.32×7.43×4.92mm
3.06ct Oval FANCY VS1 IGI-certified lab-grown diamond
3.06ct Oval · FANCY VS1
IGI LG586338807 · 11.06×8.07×5.24mm
$1,102Buy now
3.06ct Round F VVS2 IGI-certified lab-grown diamond
3.06ct Round · F VVS2
IGI 719537112 · 9.35×9.31×5.68mm
$1,003Buy now
3.07ct Oval F VVS2 IGI-certified lab-grown diamond
3.07ct Oval · F VVS2
IGI 811693957 · 11.21×8.23×5.17mm
$1,074Buy now
3.07ct Oval F VVS2 IGI-certified lab-grown diamond
3.07ct Oval · F VVS2
IGI 811676423 · 11.28×8.21×5.2mm
$1,074Buy now
3.08ct Asscher F VS1 IGI-certified lab-grown diamond
3.08ct Cushion E VS2 IGI-certified lab-grown diamond
3.08ct Cushion · E VS2
IGI 798622552 · 10.09×7.61×5.13mm
3.09ct Emerald E VS2 IGI-certified lab-grown diamond
3.09ct Emerald · E VS2
IGI 752514870 · 9.83×6.86×4.65mm
3.09ct Pear F VS1 IGI-certified lab-grown diamond
3.09ct Pear · F VS1
IGI 749505558 · 12.74×8.05×5.03mm
3.1ct Emerald E VS1 IGI-certified lab-grown diamond
3.1ct Emerald · E VS1
IGI 747518716 · 9.97×6.87×4.57mm
3.1ct Emerald E VS1 IGI-certified lab-grown diamond
3.1ct Emerald · E VS1
IGI 746543203 · 9.58×7.08×4.73mm
3.1ct Heart E VS1 IGI-certified lab-grown diamond
3.1ct Heart · E VS1
IGI 701510934 · 9.25×10.08×5.85mm
3.1ct Marquise F VVS2 IGI-certified lab-grown diamond
3.1ct Marquise · F VVS2
IGI 747590485 · 14.57×7.51×4.84mm
3.1ct Radiant G VS1 IGI-certified lab-grown diamond
3.1ct Radiant · G VS1
IGI 773658222 · 10.43×7.2×4.79mm
3.88ct Round E VS2 IGI-certified lab-grown diamond
3.88ct Round · E VS2
IGI 628479251 · 10.12×10.09×6.15mm
4ct Cushion E VS2 IGI-certified lab-grown diamond
4ct Cushion · E VS2
IGI 810620855 · 11.32×8.16×5.41mm
$1,374Buy now
4ct Cushion F VVS2 IGI-certified lab-grown diamond
4ct Cushion · F VVS2
IGI 811665603 · 10.82×8.3×5.52mm
$1,387Buy now
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 Marquise F VVS2 IGI-certified lab-grown diamond
4.01ct Marquise · F VVS2
IGI 812617598 · 16.51×8.35×5.14mm
$1,441Buy 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
4.02ct Oval F VVS2 IGI-certified lab-grown diamond
4.02ct Oval · F VVS2
IGI 799685767 · 12.36×8.99×5.63mm
$1,381Buy now
4.05ct Princess F VVS2 IGI-certified lab-grown diamond
4.05ct Princess · F VVS2
IGI 768627697 · 8.95×8.91×6.06mm
$1,085Buy now
4.08ct Heart E VS1 IGI-certified lab-grown diamond
4.08ct Heart · E VS1
IGI 717509358 · 9.78×10.78×6.6mm
$1,106Buy now
4.22ct Emerald E VS1 IGI-certified lab-grown diamond
4.22ct Emerald · E VS1
IGI 655420415 · 10.82×7.75×5.1mm
$1,117Buy now
4.26ct Emerald E VS1 IGI-certified lab-grown diamond
4.26ct Emerald · E VS1
IGI 658472617 · 10.58×7.84×5.28mm
$1,141Buy 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
5.04ct Cushion F VVS2 IGI-certified lab-grown diamond
5.04ct Cushion · F VVS2
IGI 655438773 · 11.6×8.97×6.03mm
$1,620Buy now
5.04ct Cushion E VS2 IGI-certified lab-grown diamond
5.04ct Cushion · E VS2
IGI 805688094 · 11.71×9.03×6.04mm
$1,700Buy now
5.04ct Emerald E VS2 IGI-certified lab-grown diamond
5.04ct Emerald · E VS2
IGI 692593212 · 11.39×8.42×5.55mm
$1,493Buy now
5.08ct Marquise E VS2 IGI-certified lab-grown diamond
5.08ct Marquise · E VS2
IGI 707558462 · 17.93×8.95×5.62mm
$1,313Buy now
6.16ct Cushion E VVS2 IGI-certified lab-grown diamond
6.16ct Cushion · E VVS2
IGI 723582689 · 12.91×9.41×6.38mm
$1,981Buy now
6.2ct Marquise E VS2 IGI-certified lab-grown diamond
6.2ct Marquise · E VS2
IGI 707520882 · 19.95×9.51×5.84mm
$1,466Buy now
7ct Radiant F VS1 IGI-certified lab-grown diamond
7ct Radiant · F VS1
IGI 803611155 · 13.85×9.52×6.34mm
$2,317Buy now
7.03ct Emerald F VVS2 IGI-certified lab-grown diamond
7.03ct Emerald · F VVS2
IGI 733577221 · 12.63×9.32×6.24mm
$1,884Buy now
8.05ct Emerald F VVS2 IGI-certified lab-grown diamond
8.05ct Emerald · F VVS2
IGI 724581603 · 13.77×9.48×6.28mm
$2,233Buy 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.