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Heart|Lab Grown|IGI

1.18ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG830624066

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830624066

Diamond specifications and retailer prices

From $446 AUD
$313 USD
As of October 30, 2026
Save $2,601 AUD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,047 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.18ct lab-grown heart diamond

This 1.18ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830624066 or 830624066. Listed at 17 retailers as of October 30, 2026, with prices from $446 to $3,047, a $2,601 spread on the same certified stone. Brilliant Earth lists it at $3,047. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624066
Dimensions7.38 × 6.52 × 4.16 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.38 mm6.52 mm1.18 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624066
Side View
Table 61.0%Crown 37.8°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 56.4%

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: $3,047 AUD|Low: $446 AUD|High: $3,559 AUD|Avg: $1,361 AUD|-14.4%
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
October 31, 2026
Retailer 15$446 AUD
Retailer 14$517 AUD
Retailer 7$542 AUD
Retailer 4$552 AUD
Retailer 5$552 AUD
Retailer 12$776 AUD
Retailer 3$898 AUD
Retailer 10$949 AUD
Retailer 2$984 AUD
Retailer 16$1,103 AUD
Retailer 13$1,360 AUD
Retailer 6$1,777 AUD
Retailer 17$1,842 AUD
Retailer 9$2,062 AUD
Retailer 11$2,217 AUD
Retailer 8$2,356 AUD
Brilliant Earth$3,047 AUD

42 data points across 17 retailers

17 retailers$446 AUD to $3,047 AUD

A
Cheapest Retailer
-
$446 AUD
$313 USD
A
Retailer 2
-
$517 AUD
$363 USD
View
A
Retailer 3
-
$542 AUD
$381 USD
View
Final sale: no returns
A
Retailer 4
-
$552 AUD
$388 USD
View
A
Retailer 5
-
$552 AUD
$388 USD
View
A
Retailer 6
-
$776 AUD
$545 USD
View
A
Retailer 7
-
$898 AUD
$631 USD
View
B+
Retailer 8
-
$949 AUD
ZAR 10,775 ZAR
View
B+
Retailer 9
-
$984 AUD
£545 GBP
View
B+
Retailer 10
-
$1,103 AUD
$775 USD
View
B+
Retailer 11
-
$1,360 AUD
$955 USD
View
B+
Retailer 12
-
$1,777 AUD
$1,248 USD
View
B+
Retailer 13
-
$1,842 AUD
$1,294 USD
View
B
Retailer 14
-
$2,062 AUD
SGD 1,957 SGD
View
B
Retailer 15
-
$2,217 AUD
£1,226 GBP
View
B
Retailer 16
-
$2,356 AUD
$1,655 USD
View
Most Expensive
B
Brilliant Earth
21433734A · Oct 30
$3,047 AUD
$2,140 USD
View
16 more retailers have this diamond
Prices start from $446 AUDSave up to $2,601 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
1.18ct Heart
$446 AUD