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Heart|Lab Grown|IGI

1.24ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG842604120

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842604120

Diamond specifications and retailer prices

From $449 NZD
As of November 4, 2026
Save $3,170 NZD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,619 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.24ct lab-grown heart diamond

This 1.24ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG842604120 or 842604120. Listed at 20 retailers as of November 4, 2026, with prices from $449 to $3,619, a $3,170 spread on the same certified stone. Brilliant Earth lists it at $3,619. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842604120
Dimensions6.52 × 7.43 × 4.21 mm
L/W Ratio1.14
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
6.52 mm7.43 mm1.24 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842604120
Side View
Table 57.0%Crown 36.4°Girdle: STK-THKPavilion 35.8°Culet: NoneDepth 56.7%

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: Nov 4
Current: $3,619 NZD|Low: $449 NZD|High: $5,233 NZD|Avg: $1,361 NZD|-30.8%
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
Retailer 19
Retailer 20
November 5, 2026
Retailer 9$449 NZD
Retailer 6$502 NZD
Retailer 18$520 NZD
Retailer 3$555 NZD
Retailer 8$555 NZD
Retailer 14$569 NZD
Retailer 19$843 NZD
Retailer 4$930 NZD
Retailer 17$958 NZD
Retailer 5$1,004 NZD
Retailer 2$1,041 NZD
Retailer 15$1,361 NZD
Retailer 16$1,419 NZD
Retailer 20$1,425 NZD
Retailer 11$1,786 NZD
Retailer 12$1,856 NZD
Retailer 7$1,877 NZD
Retailer 10$2,029 NZD
Retailer 13$2,221 NZD
Brilliant Earth$3,619 NZD

21 data points across 20 retailers

20 retailers$449 NZD to $3,619 NZD

A
Cheapest Retailer
-
$449 NZD
A
Retailer 2
-
$502 NZD
View
Final sale: no returns
A
Retailer 3
-
$520 NZD
View
Retailer 4
-
$555 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$555 NZD
View
A
Retailer 6
-
$569 NZD
View
A
Retailer 7
-
$843 NZD
View
A
Retailer 8
-
$930 NZD
View
A
Retailer 9
-
$958 NZD
View
A
Retailer 10
-
$1,004 NZD
View
A
Retailer 11
-
$1,041 NZD
View
B+
Retailer 12
-
$1,361 NZD
View
B+
Retailer 13
-
$1,419 NZD
View
B+
Retailer 14
-
$1,425 NZD
View
B+
Retailer 15
-
$1,786 NZD
View
B+
Retailer 16
-
$1,856 NZD
View
B+
Retailer 17
-
$1,877 NZD
View
B+
Retailer 18
-
$2,029 NZD
View
B+
Retailer 19
-
$2,221 NZD
View
Most Expensive
B
Brilliant Earth
22132052A · Nov 4
$3,619 NZD
$2,040 USD
View
19 more retailers have this diamond
Prices start from $449 NZDSave up to $3,170 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
1.24ct Heart
$449 NZD