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Heart|Lab Grown|IGI

4.50ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG835645039

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835645039

Diamond specifications and retailer prices

From $1,371 AUD
£758 GBP
As of October 30, 2026
Save $3,541 AUD (72%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,588 AUD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4.5ct lab-grown heart diamond

This 4.5ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG835645039 or 835645039. Listed at 6 retailers as of October 30, 2026, with a 258% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.50
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835645039
Dimensions11.58 × 10.78 × 6.51 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.58 mm10.78 mm4.50 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835645039
Side View
Table 66.0%Crown 40.2°Girdle: MED-STKPavilion 38.6°CuletDepth 56.2%

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: $7,588 AUD|Low: $1,371 AUD|High: $7,816 AUD|Avg: $3,588 AUD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4$1,371 AUD
Retailer 5$1,529 AUD
Retailer 7$1,936 AUD
Retailer 6$2,538 AUD
Retailer 2$3,394 AUD
Retailer 3$4,911 AUD
Brilliant Earth$7,588 AUD

12 data points across 7 retailers

6 retailers$1,371 AUD to $4,911 AUD

A
Cheapest Retailer
-
$1,371 AUD
£758 GBP
A
Retailer 2
-
$1,529 AUD
$1,074 USD
View
Final sale: no returns
Retailer 3
-
$2,538 AUD
$1,783 USD
View
Price last confirmed 12 days ago
B
Retailer 4
-
$3,394 AUD
View
B
Retailer 5
-
$4,911 AUD
$3,450 USD
View
Most Expensive
Brilliant Earth
21634884A · Oct 21
$7,588 AUD
$5,330 USD
View
Price last confirmed 10 days ago
5 more retailers have this diamond
Prices start from $1,371 AUDSave up to $3,541 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
4.50ct Heart
$1,371 AUD