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Heart|Lab Grown|IGI

4.51ct E VS1 Heart Lab Grown Diamond

VG • E/VS1 • IGI LG774658447

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774658447

Diamond specifications and retailer prices

From $654 USD
As of October 30, 2026
Save $2,548 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,202 USD at MOH London · As of October 26, 2026
View at MOH London

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG774658447 or 774658447. Listed at 18 retailers as of October 26, 2026, with prices from $654 to $3,202, a $2,548 spread on the same certified stone. MOH London lists it at $3,202. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774658447
Dimensions11.07 × 11.26 × 6.28 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.07 mm11.26 mm4.51 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774658447
Side View
Table 66.0%Crown 34.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 55.8%

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: Oct 30
Current: $3,202 USD|Low: $641 USD|High: $3,307 USD|Avg: $1,421 USD|-3.1%
MOH London
Retailer 2
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
October 31, 2026
Retailer 9$654 USD
Retailer 12$657 USD
Retailer 15$712 USD
Retailer 17$732 USD
Retailer 8$759 USD
Retailer 10$775 USD
Retailer 14$935 USD
Retailer 18$1,088 USD
Retailer 16$1,197 USD
Retailer 2$1,213 USD
Retailer 13$1,615 USD
Retailer 11$1,626 USD
Retailer 3$1,939 USD
Retailer 4$1,950 USD
Retailer 6$2,134 USD
Retailer 7$2,589 USD
Retailer 5$2,618 USD
MOH London$3,202 USD

37 data points across 18 retailers

18 retailers$654 USD to $3,202 USD

A
Cheapest Retailer
-
$654 USD
A
Retailer 2
-
$657 USD
£517 GBP
View
A
Retailer 3
-
$712 USD
View
A
Retailer 4
-
$732 USD
View
Final sale: no returns
A
Retailer 5
-
$759 USD
View
Retailer 6
-
$775 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$935 USD
View
B+
Retailer 8
-
$1,088 USD
View
A
Retailer 9
-
$1,197 USD
View
A
Retailer 10
-
$1,213 USD
£955 GBP
View
A
Retailer 11
-
$1,615 USD
ZAR 26,096 ZAR
View
A
Retailer 12
-
$1,626 USD
A$2,502 AUD
View
B+
Retailer 13
-
$1,939 USD
View
B+
Retailer 14
-
$1,950 USD
View
B+
Retailer 15
-
$2,134 USD
View
B+
Retailer 16
-
$2,589 USD
View
B
Retailer 17
-
$2,618 USD
View
Most Expensive
B
MOH London
LG774658447 · Oct 26
$3,202 USD
£2,521 GBP
View
17 more retailers have this diamond
Prices start from $654 USDSave up to $2,548 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 Heart
$654 USD