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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 $931 AUD
$654 USD
As of October 30, 2026
Save $3,627 AUD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,558 AUD 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 $931 to $4,558, a $3,627 spread on the same certified stone. MOH London lists it at $4,558. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,558 AUD|Low: $913 AUD|High: $4,708 AUD|Avg: $2,022 AUD|-3.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 9$931 AUD
Retailer 12$935 AUD
Retailer 15$1,014 AUD
Retailer 17$1,042 AUD
Retailer 8$1,081 AUD
Retailer 10$1,103 AUD
Retailer 14$1,331 AUD
Retailer 18$1,549 AUD
Retailer 16$1,704 AUD
Retailer 2$1,727 AUD
Retailer 13$2,300 AUD
Retailer 11$2,315 AUD
Retailer 3$2,760 AUD
Retailer 4$2,776 AUD
Retailer 6$3,038 AUD
Retailer 7$3,686 AUD
Retailer 5$3,728 AUD
MOH London$4,558 AUD

37 data points across 18 retailers

18 retailers$931 AUD to $4,558 AUD

A
Cheapest Retailer
-
$931 AUD
$654 USD
A
Retailer 2
-
$935 AUD
£517 GBP
View
A
Retailer 3
-
$1,014 AUD
$712 USD
View
A
Retailer 4
-
$1,042 AUD
$732 USD
View
Final sale: no returns
A
Retailer 5
-
$1,081 AUD
$759 USD
View
Retailer 6
-
$1,103 AUD
$775 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
$1,331 AUD
$935 USD
View
B+
Retailer 8
-
$1,549 AUD
$1,088 USD
View
A
Retailer 9
-
$1,704 AUD
$1,197 USD
View
A
Retailer 10
-
$1,727 AUD
£955 GBP
View
A
Retailer 11
-
$2,300 AUD
ZAR 26,096 ZAR
View
A
Retailer 12
-
$2,315 AUD
View
B+
Retailer 13
-
$2,760 AUD
$1,939 USD
View
B+
Retailer 14
-
$2,776 AUD
$1,950 USD
View
B+
Retailer 15
-
$3,038 AUD
$2,134 USD
View
B+
Retailer 16
-
$3,686 AUD
$2,589 USD
View
B
Retailer 17
-
$3,728 AUD
$2,618 USD
View
Most Expensive
B
MOH London
LG774658447 · Oct 26
$4,558 AUD
£2,521 GBP
View
17 more retailers have this diamond
Prices start from $931 AUDSave up to $3,627 AUD

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
$931 AUD