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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 $556 NZD
$313 USD
As of October 30, 2026
Save $3,247 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,803 NZD at Brilliant Earth · As of October 31, 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 $556 to $3,803, a $3,247 spread on the same certified stone. Brilliant Earth lists it at $3,803. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,803 NZD|Low: $556 NZD|High: $4,443 NZD|Avg: $1,697 NZD|-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
November 1, 2026
Retailer 15$556 NZD
Retailer 14$645 NZD
Retailer 7$677 NZD
Retailer 4$690 NZD
Retailer 5$690 NZD
Retailer 12$969 NZD
Retailer 3$1,121 NZD
Retailer 11$1,185 NZD
Retailer 10$1,229 NZD
Retailer 16$1,377 NZD
Retailer 13$1,697 NZD
Retailer 6$2,218 NZD
Retailer 17$2,299 NZD
Retailer 9$2,574 NZD
Retailer 2$2,765 NZD
Retailer 8$2,941 NZD
Brilliant Earth$3,803 NZD

43 data points across 17 retailers

17 retailers$556 NZD to $3,803 NZD

A
Cheapest Retailer
-
$556 NZD
$313 USD
A
Retailer 2
-
$645 NZD
$363 USD
View
A
Retailer 3
-
$677 NZD
$381 USD
View
Final sale: no returns
A
Retailer 4
-
$690 NZD
$388 USD
View
Retailer 5
-
$690 NZD
$388 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$969 NZD
$545 USD
View
A
Retailer 7
-
$1,121 NZD
$631 USD
View
B+
Retailer 8
-
$1,185 NZD
ZAR 10,775 ZAR
View
B+
Retailer 9
-
$1,229 NZD
£545 GBP
View
B+
Retailer 10
-
$1,377 NZD
$775 USD
View
B+
Retailer 11
-
$1,697 NZD
$955 USD
View
B+
Retailer 12
-
$2,218 NZD
$1,248 USD
View
B+
Retailer 13
-
$2,299 NZD
$1,294 USD
View
B
Retailer 14
-
$2,574 NZD
SGD 1,957 SGD
View
B+
Retailer 15
-
$2,765 NZD
£1,225 GBP
View
B
Retailer 16
-
$2,941 NZD
$1,655 USD
View
Most Expensive
B
Brilliant Earth
21433734A · Oct 31
$3,803 NZD
$2,140 USD
View
16 more retailers have this diamond
Prices start from $556 NZDSave up to $3,247 NZD

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
$556 NZD