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Marquise|Lab Grown|IGI

4.51ct G VS2 Marquise Lab Grown Diamond

ID • G/VS2 • IGI LG846694116

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846694116

Diamond specifications and retailer prices

From $617 USD
As of November 1, 2026
Save $2,356 USD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,973 USD at MOH London · As of November 1, 2026
View at MOH London

About this 4.51ct lab-grown marquise diamond

This 4.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846694116 or 846694116. Listed at 10 retailers as of November 1, 2026, with prices from $617 to $2,973, a $2,356 spread on the same certified stone. MOH London lists it at $2,973. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846694116
Dimensions15.89 × 8.79 × 5.32 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.89 mm8.79 mm4.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846694116
Side View
Table 59.0%Crown 39.8°Girdle: THK-VTKPavilion 36.7°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,973 USD|Low: $617 USD|High: $2,988 USD|Avg: $1,470 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$617 USD
Retailer 2$648 USD
Retailer 4$820 USD
Retailer 10$918 USD
Retailer 3$1,068 USD
Retailer 5$1,462 USD
Retailer 7$1,767 USD
Retailer 6$2,205 USD
Retailer 9$2,221 USD
MOH London$2,973 USD

14 data points across 10 retailers

10 retailers$617 USD to $2,973 USD

A
Cheapest Retailer
-
$617 USD
Final sale: no returns
A
Retailer 2
-
$648 USD
£510 GBP
View
A
Retailer 3
-
$820 USD
View
B+
Retailer 4
-
$918 USD
View
A
Retailer 5
-
$1,068 USD
£841 GBP
View
A
Retailer 6
-
$1,462 USD
View
B+
Retailer 7
-
$1,767 USD
View
B+
Retailer 8
-
$2,205 USD
View
B+
Retailer 9
-
$2,221 USD
View
Most Expensive
B
MOH London
LG846694116 · Nov 1
$2,973 USD
£2,341 GBP
View
9 more retailers have this diamond
Prices start from $617 USDSave up to $2,356 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
4.51ct Marquise
$617 USD