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Heart|Lab Grown|IGI

1.54ct F IF Heart Lab Grown Diamond

EX • F/IF • IGI LG665407314

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665407314

Diamond specifications and retailer prices

From $494 NZD
As of November 6, 2026
Save $3,240 NZD (87%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,734 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665407314 or 665407314. Listed at 7 retailers as of November 5, 2026, with prices from $494 to $3,734, a $3,240 spread on the same certified stone. Brilliant Earth lists it at $3,734. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665407314
Dimensions7.13 × 8.29 × 4.64 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
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
7.13 mm8.29 mm1.54 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665407314
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 56.0%

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: Nov 6
Current: $3,734 NZD|Low: $494 NZD|High: $5,664 NZD|Avg: $1,920 NZD|-34.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6$494 NZD
Retailer 7$857 NZD
Retailer 2$992 NZD
Retailer 4$1,719 NZD
Retailer 5$1,826 NZD
Retailer 3$2,121 NZD
Brilliant Earth$3,734 NZD

44 data points across 7 retailers

7 retailers$494 NZD to $3,734 NZD

A
Cheapest Retailer
-
$494 NZD
Final sale: no returns
A
Retailer 2
-
$992 NZD
View
B+
Retailer 3
-
$1,719 NZD
View
B+
Retailer 4
-
$1,826 NZD
View
B+
Retailer 5
-
$1,889 NZD
View
B+
Retailer 6
-
$2,121 NZD
View
Most Expensive
B
Brilliant Earth
15002185A · Nov 5
$3,734 NZD
$2,070 USD
View
6 more retailers have this diamond
Prices start from $494 NZDSave up to $3,240 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
1.54ct Heart
$494 NZD