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Heart|Lab Grown|IGI

1.58ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG742505336

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742505336

Diamond specifications and retailer prices

From $557 NZD
$314 USD
As of October 30, 2026
Save $4,553 NZD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,110 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.58ct lab-grown heart diamond

This 1.58ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG742505336 or 742505336. Listed at 13 retailers as of October 30, 2026, with prices from $557 to $5,110, a $4,553 spread on the same certified stone. Brilliant Earth lists it at $5,110. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742505336
Dimensions7.19 × 7.88 × 4.87 mm
L/W Ratio1.10
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
7.19 mm7.88 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742505336
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
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: $5,110 NZD|Low: $515 NZD|High: $6,033 NZD|Avg: $2,098 NZD|-15.3%
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
October 30, 2026
Retailer 4$557 NZD
Retailer 7$646 NZD
Retailer 5$720 NZD
Retailer 11$896 NZD
Retailer 10$962 NZD
Retailer 2$1,151 NZD
Retailer 9$1,153 NZD
Retailer 13$1,735 NZD
Retailer 12$2,223 NZD
Retailer 8$2,491 NZD
Retailer 6$2,785 NZD
Retailer 3$3,002 NZD
Brilliant Earth$5,110 NZD

36 data points across 13 retailers

13 retailers$557 NZD to $5,110 NZD

A+
Cheapest Retailer
-
$557 NZD
$314 USD
A
Retailer 2
-
$646 NZD
$364 USD
View
A
Retailer 3
-
$720 NZD
$406 USD
View
Final sale: no returns
A
Retailer 4
-
$896 NZD
$505 USD
View
A
Retailer 5
-
$962 NZD
$542 USD
View
A
Retailer 6
-
$1,151 NZD
€618 EUR
View
A
Retailer 7
-
$1,153 NZD
$650 USD
View
A
Retailer 8
-
$1,735 NZD
$978 USD
View
B+
Retailer 9
-
$2,223 NZD
$1,253 USD
View
B+
Retailer 10
-
$2,491 NZD
$1,404 USD
View
B+
Retailer 11
-
$2,785 NZD
£1,236 GBP
View
B+
Retailer 12
-
$3,002 NZD
$1,692 USD
View
Most Expensive
B
Brilliant Earth
16536818A · Oct 30
$5,110 NZD
$2,880 USD
View
12 more retailers have this diamond
Prices start from $557 NZDSave up to $4,553 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+
1.58ct Heart
$557 NZD