Marquise|Lab Grown|IGI

4.51ct E VS2 Marquise Lab Grown Diamond

VG • E/VS2 • IGI LG844649670

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844649670

Diamond specifications and retailer prices

From $686 USD
£540 GBP
As of October 26, 2026
Save $2,554 USD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,240 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 very-good cut grade and certified by IGI LG844649670 or 844649670. Listed at 11 retailers as of October 26, 2026, with prices from $686 to $3,240, a $2,554 spread on the same certified stone. MOH London lists it at $3,240. 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

4.51
Carat
E
Color
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844649670
Dimensions17.56 × 8.34 × 5.08 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.56 mm8.34 mm4.51 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844649670
Side View
Table 63.0%Crown 33.9°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 60.9%

Caratlytics Score

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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: Oct 26
Current: $3,240 USD|Low: $685 USD|High: $3,252 USD|Avg: $1,747 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 5$686 USD
Retailer 10$741 USD
Retailer 9$945 USD
Retailer 3$1,088 USD
Retailer 2$1,217 USD
Retailer 6$1,231 USD
Retailer 4$1,778 USD
Retailer 8$1,962 USD
Retailer 11$2,451 USD
Retailer 7$2,544 USD
Retailer 12$2,650 USD
MOH London$3,240 USD

7 data points across 12 retailers

11 retailers$686 USD to $3,240 USD

A
Cheapest Retailer
-
$686 USD
£540 GBP
A
Retailer 2
-
$945 USD
View
Retailer 3
-
$1,088 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$1,217 USD
£958 GBP
View
A
Retailer 5
-
$1,231 USD
€1,172 EUR
View
B+
Retailer 6
-
$1,778 USD
View
B+
Retailer 7
-
$1,962 USD
View
B+
Retailer 8
-
$2,451 USD
View
B+
Retailer 9
-
$2,544 USD
View
B
Retailer 10
-
$2,650 USD
View
Most Expensive
B
MOH London
LG844649670 · Oct 26
$3,240 USD
£2,551 GBP
View
10 more retailers have this diamond
Prices start from $686 USDSave up to $2,554 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
$686 USD