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Marquise|Lab Grown|IGI

4.51ct E VS2 Marquise Lab Grown Diamond

ID • E/VS2 • IGI LG694519621

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG694519621

Diamond specifications and retailer prices

From $1,000 USD
As of October 27, 2026
Save $2,231 USD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,231 USD at MOH London · As of October 26, 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 E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG694519621 or 694519621. Listed at 10 retailers as of October 26, 2026, with prices from $1,000 to $3,231, a $2,231 spread on the same certified stone. MOH London lists it at $3,231. 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
E
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG694519621
Dimensions16.37 × 8.69 × 5.10 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.37 mm8.69 mm4.51 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG694519621
Side View
Table 58.0%Crown 34.2°Girdle: THK-VTKPavilion 36.1°Culet: NoneDepth 58.7%

Caratlytics Score

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

Price History

Last verified: Oct 27
Current: $3,231 USD|Low: $647 USD|High: $9,020 USD|Avg: $3,233 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 26, 2026
Retailer 13$792 USD
Retailer 9$1,000 USD
Retailer 7$1,305 USD
Retailer 14$1,435 USD
Retailer 12$1,794 USD
Retailer 2$2,024 USD
Retailer 10$2,685 USD
Retailer 11$2,803 USD
Retailer 8$2,833 USD
MOH London$3,231 USD
Retailer 3$3,579 USD
Retailer 6$3,882 USD
Retailer 5$5,570 USD
Retailer 4$9,020 USD

9 data points across 14 retailers

10 retailers$1,000 USD to $3,231 USD

Retailer 1
-
$708 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$1,000 USD
View
A
Retailer 3
-
$1,305 USD
£1,028 GBP
View
Retailer 4
-
$1,435 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$1,794 USD
View
A
Retailer 6
-
$2,024 USD
View
B+
Retailer 7
-
$2,685 USD
View
B+
Retailer 8
-
$2,803 USD
View
B
Retailer 9
-
$2,833 USD
View
Most Expensive
B
MOH London
LG694519621 · Oct 26
$3,231 USD
£2,544 GBP
View
9 more retailers have this diamond
Prices start from $1,000 USDSave up to $2,231 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
$1,000 USD