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Heart|Lab Grown|IGI

1.59ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG620488289

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG620488289

Diamond specifications and retailer prices

From $344 NZD
$194 USD
As of October 30, 2026
Save $1,666 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,010 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.59ct lab-grown heart diamond

This 1.59ct 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 LG620488289 or 620488289. Listed at 11 retailers as of October 29, 2026, with prices from $344 to $2,010, a $1,666 spread on the same certified stone. MOH London lists it at $2,010. 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

1.59
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620488289
Dimensions8.29 × 7.40 × 4.50 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.29 mm7.40 mm1.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620488289
Side View
Table 60.0%Crown 32.2°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 54.3%

Caratlytics Score

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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: Oct 30
Current: $2,010 NZD|Low: $344 NZD|High: $2,928 NZD|Avg: $1,077 NZD
MOH London
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
October 30, 2026
Retailer 3$344 NZD
Retailer 14$399 NZD
Retailer 8$428 NZD
Retailer 12$477 NZD
Retailer 2$549 NZD
Retailer 13$743 NZD
Retailer 7$779 NZD
Retailer 11$875 NZD
Retailer 4$877 NZD
Retailer 9$891 NZD
Retailer 10$1,375 NZD
MOH London$2,010 NZD
Retailer 5$2,013 NZD
Retailer 6$2,928 NZD

4 data points across 14 retailers

11 retailers$344 NZD to $2,010 NZD

A
Cheapest Retailer
-
$344 NZD
$194 USD
A
Retailer 2
-
$399 NZD
$225 USD
View
A
Retailer 3
-
$428 NZD
$241 USD
View
A
Retailer 4
-
$477 NZD
HK$2,100 HKD
View
A
Retailer 5
-
$549 NZD
£244 GBP
View
B+
Retailer 6
-
$743 NZD
$419 USD
View
A
Retailer 7
-
$779 NZD
£346 GBP
View
B+
Retailer 8
-
$875 NZD
$493 USD
View
B+
Retailer 9
-
$891 NZD
$502 USD
View
B
Retailer 10
-
$1,375 NZD
$775 USD
View
Most Expensive
B
MOH London
LG620488289 · Oct 29
$2,010 NZD
£892 GBP
View
10 more retailers have this diamond
Prices start from $344 NZDSave up to $1,666 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
1.59ct Heart
$344 NZD