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Heart|Lab Grown|IGI

1.50ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG741510153

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG741510153

Diamond specifications and retailer prices

From $388 NZD
As of November 6, 2026
Save $1,542 NZD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,930 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG741510153 or 741510153. Listed at 17 retailers as of November 6, 2026, with prices from $388 to $1,930, a $1,542 spread on the same certified stone. Brilliant Earth lists it at $1,930. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741510153
Dimensions7.32 × 7.76 × 4.64 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.32 mm7.76 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741510153
Side View
Table 55.0%Crown 33.6°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 59.8%

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: $1,930 NZD|Low: $382 NZD|High: $2,233 NZD|Avg: $1,052 NZD|-6.1%
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
November 6, 2026
Retailer 12$388 NZD
Retailer 4$449 NZD
Retailer 5$480 NZD
Retailer 7$494 NZD
Retailer 8$498 NZD
Retailer 10$821 NZD
Retailer 16$824 NZD
Retailer 2$851 NZD
Retailer 9$880 NZD
Retailer 6$951 NZD
Retailer 15$1,295 NZD
Retailer 13$1,544 NZD
Retailer 3$1,573 NZD
Retailer 14$1,638 NZD
Retailer 11$1,919 NZD
Brilliant Earth$1,930 NZD

45 data points across 16 retailers

17 retailers$388 NZD to $1,930 NZD

A
Cheapest Retailer
-
$388 NZD
A
Retailer 2
-
$449 NZD
View
A
Retailer 3
-
$480 NZD
View
Retailer 4
-
$494 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$498 NZD
View
Final sale: no returns
B+
Retailer 6
-
$821 NZD
View
B+
Retailer 7
-
$824 NZD
View
B+
Retailer 8
-
$851 NZD
View
B+
Retailer 9
-
$880 NZD
View
B+
Retailer 10
-
$951 NZD
View
B+
Retailer 11
-
$981 NZD
View
B+
Retailer 12
-
$1,295 NZD
View
B
Retailer 13
-
$1,544 NZD
View
B
Retailer 14
-
$1,573 NZD
View
B
Retailer 15
-
$1,638 NZD
View
B
Retailer 16
-
$1,919 NZD
View
Most Expensive
B
Brilliant Earth
16911377A · Nov 6
$1,930 NZD
$1,070 USD
View
16 more retailers have this diamond
Prices start from $388 NZDSave up to $1,542 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
1.50ct Heart
$388 NZD