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 $313 USD
As of October 27, 2026
Save $2,177 USD (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,490 USD at Brilliant Earth · As of October 28, 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 27, 2026, with prices from $313 to $2,490, a $2,177 spread on the same certified stone. Brilliant Earth lists it at $2,490. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,490 USD|Low: $313 USD|High: $2,500 USD|Avg: $1,026 USD|-0.4%
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
October 30, 2026
Retailer 12$313 USD
Retailer 5$381 USD
Retailer 3$388 USD
Retailer 10$545 USD
Retailer 15$631 USD
Retailer 8$667 USD
Retailer 2$691 USD
Retailer 13$775 USD
Retailer 11$955 USD
Retailer 4$1,248 USD
Retailer 14$1,294 USD
Retailer 7$1,448 USD
Retailer 9$1,557 USD
Retailer 6$1,655 USD
Brilliant Earth$2,490 USD

41 data points across 15 retailers

17 retailers$313 USD to $2,490 USD

A
Cheapest Retailer
-
$313 USD
A
Retailer 2
-
$363 USD
View
A
Retailer 3
-
$381 USD
View
Final sale: no returns
A
Retailer 4
-
$388 USD
View
A
Retailer 5
-
$388 USD
View
A
Retailer 6
-
$545 USD
View
A
Retailer 7
-
$631 USD
View
A
Retailer 8
-
$667 USD
ZAR 10,775 ZAR
View
B+
Retailer 9
-
$691 USD
£544 GBP
View
B+
Retailer 10
-
$775 USD
View
B+
Retailer 11
-
$955 USD
View
B+
Retailer 12
-
$1,248 USD
View
B+
Retailer 13
-
$1,294 USD
View
B+
Retailer 14
-
$1,448 USD
SGD 1,957 SGD
View
B+
Retailer 15
-
$1,557 USD
£1,226 GBP
View
B
Retailer 16
-
$1,655 USD
View
Most Expensive
B
Brilliant Earth
21433734A · Oct 28
$2,490 USD
View
16 more retailers have this diamond
Prices start from $313 USDSave up to $2,177 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
1.18ct Heart
$313 USD