Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG841641096

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841641096

Diamond specifications and retailer prices

From $441 USD
As of October 30, 2026
Save $3,199 USD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,640 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG841641096 or 841641096. Listed at 18 retailers as of October 30, 2026, with prices from $441 to $3,640, a $3,199 spread on the same certified stone. Brilliant Earth lists it at $3,640. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841641096
Dimensions15.44 × 8.02 × 5.02 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.44 mm8.02 mm3.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841641096
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,640 USD|Low: $441 USD|High: $3,640 USD|Avg: $1,266 USD
Brilliant Earth
Retailer 2
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
November 1, 2026
Retailer 3$441 USD
Retailer 17$494 USD
Retailer 9$547 USD
Retailer 16$547 USD
Retailer 11$609 USD
Retailer 15$690 USD
Retailer 4$859 USD
Retailer 12$904 USD
Retailer 18$940 USD
Retailer 13$1,156 USD
Retailer 14$1,188 USD
Retailer 7$1,200 USD
Retailer 6$1,471 USD
Retailer 8$1,759 USD
Retailer 10$1,792 USD
Retailer 2$2,010 USD
Retailer 5$2,047 USD
Brilliant Earth$3,640 USD

12 data points across 18 retailers

18 retailers$441 USD to $3,640 USD

A
Cheapest Retailer
-
$441 USD
A
Retailer 2
-
$494 USD
View
Retailer 3
-
$547 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$547 USD
View
A
Retailer 5
-
$609 USD
£480 GBP
View
A
Retailer 6
-
$690 USD
View
B+
Retailer 7
-
$859 USD
View
A
Retailer 8
-
$904 USD
£712 GBP
View
A
Retailer 9
-
$940 USD
View
B+
Retailer 10
-
$1,156 USD
A$1,778 AUD
View
B+
Retailer 11
-
$1,188 USD
ZAR 19,189 ZAR
View
B+
Retailer 12
-
$1,200 USD
View
B+
Retailer 13
-
$1,471 USD
View
B+
Retailer 14
-
$1,759 USD
View
B+
Retailer 15
-
$1,792 USD
View
B+
Retailer 16
-
$2,010 USD
£1,583 GBP
View
B
Retailer 17
-
$2,047 USD
View
Most Expensive
B
Brilliant Earth
22221993A · Oct 31
$3,640 USD
View
17 more retailers have this diamond
Prices start from $441 USDSave up to $3,199 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.51ct Marquise
$441 USD