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Heart|Lab Grown|IGI

1.56ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG650418795

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG650418795

Diamond specifications and retailer prices

From $390 NZD
$220 USD
As of October 30, 2026
Save $1,579 NZD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,969 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown heart diamond

This 1.56ct 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 LG650418795 or 650418795. Listed at 13 retailers as of October 29, 2026, with prices from $390 to $1,969, a $1,579 spread on the same certified stone. Brilliant Earth lists it at $1,969. 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

1.56
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650418795
Dimensions6.99 × 7.90 × 4.71 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm7.90 mm1.56 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650418795
Side View
Table 56.0%Crown 36.6°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
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: $1,969 NZD|Low: $262 NZD|High: $2,040 NZD|Avg: $940 NZD|-3.5%
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 31, 2026
Retailer 5$262 NZD
Retailer 4$390 NZD
Retailer 11$436 NZD
Retailer 13$452 NZD
Retailer 7$483 NZD
Retailer 12$648 NZD
Retailer 3$862 NZD
Retailer 6$896 NZD
Retailer 9$937 NZD
Retailer 2$1,253 NZD
Retailer 10$1,553 NZD
Retailer 8$1,947 NZD
Brilliant Earth$1,969 NZD

44 data points across 13 retailers

13 retailers$390 NZD to $1,969 NZD

A
Cheapest Retailer
-
$390 NZD
$220 USD
A
Retailer 2
-
$436 NZD
$246 USD
View
Final sale: no returns
A
Retailer 3
-
$452 NZD
$255 USD
View
A
Retailer 4
-
$483 NZD
$272 USD
View
A
Retailer 5
-
$499 NZD
$281 USD
View
B+
Retailer 6
-
$648 NZD
$365 USD
View
B+
Retailer 7
-
$862 NZD
$486 USD
View
B+
Retailer 8
-
$896 NZD
£398 GBP
View
B+
Retailer 9
-
$937 NZD
$528 USD
View
B
Retailer 10
-
$1,253 NZD
$706 USD
View
B
Retailer 11
-
$1,553 NZD
$875 USD
View
B
Retailer 12
-
$1,947 NZD
£864 GBP
View
Most Expensive
B
Brilliant Earth
12163591A · Oct 29
$1,969 NZD
$1,110 USD
View
12 more retailers have this diamond
Prices start from $390 NZDSave up to $1,579 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
1.56ct Heart
$390 NZD