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Marquise|Lab Grown|IGI

4.51ct E VS2 Marquise Lab Grown Diamond

EX • E/VS2 • IGI LG838644151

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838644151

Diamond specifications and retailer prices

From $716 USD
As of October 30, 2026
Save $5,644 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,360 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG838644151 or 838644151. Listed at 11 retailers as of October 30, 2026, with prices from $716 to $6,360, a $5,644 spread on the same certified stone. Do Amore Diamonds lists it at $6,360. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838644151
Dimensions17.93 × 8.57 × 5.09 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.93 mm8.57 mm4.51 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838644151
Side View
Table 64.0%Crown 33.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.4%

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 30
Current: $6,360 USD|Low: $716 USD|High: $8,170 USD|Avg: $3,131 USD|-1.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$716 USD
Retailer 4$821 USD
Retailer 11$1,348 USD
Retailer 6$1,350 USD
Retailer 7$2,046 USD
Retailer 3$2,255 USD
Retailer 10$2,578 USD
Retailer 5$3,456 USD
Retailer 2$4,580 USD
Retailer 9$4,863 USD
Do Amore Diamonds$6,360 USD

19 data points across 11 retailers

11 retailers$716 USD to $6,360 USD

A
Cheapest Retailer
-
$716 USD
A
Retailer 2
-
$821 USD
£646 GBP
View
B+
Retailer 3
-
$1,348 USD
View
B+
Retailer 4
-
$1,350 USD
View
B+
Retailer 5
-
$2,046 USD
View
B+
Retailer 6
-
$2,255 USD
View
B+
Retailer 7
-
$2,578 USD
View
B+
Retailer 8
-
$3,456 USD
£2,721 GBP
View
B
Retailer 9
-
$4,580 USD
View
B
Retailer 10
-
$4,863 USD
View
Most Expensive
B
Do Amore Diamonds
27-013763879 · Oct 31
$6,360 USD
View
10 more retailers have this diamond
Prices start from $716 USDSave up to $5,644 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
$716 USD