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Heart|Lab Grown|IGI

4.02ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG670428266

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG670428266

Diamond specifications and retailer prices

From $696 AUD
£385 GBP
As of October 27, 2026
Save $3,831 AUD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,527 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.02ct lab-grown heart diamond

This 4.02ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670428266 or 670428266. Listed at 17 retailers as of October 27, 2026, with prices from $696 to $4,527, a $3,831 spread on the same certified stone. Brilliant Earth lists it at $4,527. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670428266
Dimensions10.10 × 11.06 × 6.49 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.10 mm11.06 mm4.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670428266
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 58.7%

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 27
Current: $4,527 AUD|Low: $652 AUD|High: $8,542 AUD|Avg: $1,877 AUD|-47.0%
Brilliant Earth
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 30, 2026
Retailer 3$671 AUD
Retailer 12$696 AUD
Retailer 10$749 AUD
Retailer 17$750 AUD
Retailer 4$831 AUD
Retailer 2$893 AUD
Retailer 16$1,032 AUD
Retailer 11$1,223 AUD
Retailer 6$1,300 AUD
Retailer 9$1,308 AUD
Retailer 13$1,371 AUD
Retailer 15$1,867 AUD
Retailer 5$1,940 AUD
Retailer 7$1,984 AUD
Retailer 8$2,633 AUD
Retailer 18$2,672 AUD
Retailer 14$3,057 AUD
Brilliant Earth$4,527 AUD

28 data points across 18 retailers

17 retailers$696 AUD to $4,527 AUD

Retailer 1
-
$671 AUD
$471 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$696 AUD
£385 GBP
View
A
Retailer 3
-
$750 AUD
$527 USD
View
A
Retailer 4
-
$831 AUD
$584 USD
View
A
Retailer 5
-
$893 AUD
HK$4,900 HKD
View
A
Retailer 6
-
$1,032 AUD
$725 USD
View
B+
Retailer 7
-
$1,223 AUD
€818 EUR
View
B+
Retailer 8
-
$1,300 AUD
$913 USD
View
B+
Retailer 9
-
$1,308 AUD
$919 USD
View
B+
Retailer 10
-
$1,371 AUD
£758 GBP
View
B+
Retailer 11
-
$1,867 AUD
View
B
Retailer 12
-
$1,940 AUD
$1,363 USD
View
B
Retailer 13
-
$1,984 AUD
$1,394 USD
View
B
Retailer 14
-
$2,633 AUD
SGD 2,499 SGD
View
B
Retailer 15
-
$2,672 AUD
$1,877 USD
View
B
Retailer 16
-
$3,057 AUD
£1,691 GBP
View
Most Expensive
B
Brilliant Earth
14415188A · Oct 30
$4,527 AUD
$3,180 USD
View
16 more retailers have this diamond
Prices start from $696 AUDSave up to $3,831 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
4.02ct Heart
$696 AUD