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Heart|Lab Grown|IGI

1.58ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG674535774

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG674535774

Diamond specifications and retailer prices

From $578 NZD
$325 USD
As of November 1, 2026
Save $4,772 NZD (89%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,350 NZD at Brilliant Earth · As of November 2, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG674535774 or 674535774. Listed at 8 retailers as of November 1, 2026, with prices from $578 to $5,350, a $4,772 spread on the same certified stone. Brilliant Earth lists it at $5,350. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674535774
Dimensions8.26 × 7.13 × 4.81 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
8.26 mm7.13 mm1.58 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674535774
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 43.1°Culet: NoneDepth 58.2%

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 1
Current: $5,350 NZD|Low: $578 NZD|High: $5,510 NZD|Avg: $2,085 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$578 NZD
Retailer 3$960 NZD
Retailer 2$1,132 NZD
Retailer 6$2,057 NZD
Retailer 7$2,183 NZD
Retailer 4$2,578 NZD
Brilliant Earth$5,350 NZD

42 data points across 7 retailers

8 retailers$578 NZD to $5,350 NZD

A
Cheapest Retailer
-
$578 NZD
$325 USD
Final sale: no returns
A
Retailer 2
-
$960 NZD
$540 USD
View
A
Retailer 3
-
$1,132 NZD
£502 GBP
View
A
Retailer 4
-
$2,015 NZD
$1,134 USD
View
A
Retailer 5
-
$2,057 NZD
SGD 1,564 SGD
View
B+
Retailer 6
-
$2,183 NZD
$1,228 USD
View
B+
Retailer 7
-
$2,578 NZD
£1,142 GBP
View
Most Expensive
B
Brilliant Earth
15002048A · Nov 2
$5,350 NZD
$3,010 USD
View
7 more retailers have this diamond
Prices start from $578 NZDSave up to $4,772 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
$578 NZD