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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 $220 USD
As of October 27, 2026
Save $890 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,110 USD 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 27, 2026, with prices from $220 to $1,110, a $890 spread on the same certified stone. Brilliant Earth lists it at $1,110. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,110 USD|Low: $148 USD|High: $1,150 USD|Avg: $529 USD|-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 30, 2026
Retailer 5$148 USD
Retailer 3$220 USD
Retailer 10$246 USD
Retailer 12$255 USD
Retailer 6$272 USD
Retailer 11$365 USD
Retailer 13$486 USD
Retailer 2$505 USD
Retailer 8$528 USD
Retailer 4$731 USD
Retailer 9$875 USD
Retailer 7$1,097 USD
Brilliant Earth$1,110 USD

44 data points across 13 retailers

13 retailers$220 USD to $1,110 USD

A
Cheapest Retailer
-
$220 USD
A
Retailer 2
-
$246 USD
View
Final sale: no returns
A
Retailer 3
-
$255 USD
View
A
Retailer 4
-
$272 USD
View
A
Retailer 5
-
$281 USD
View
B+
Retailer 6
-
$365 USD
View
B+
Retailer 7
-
$486 USD
View
B+
Retailer 8
-
$505 USD
£398 GBP
View
B+
Retailer 9
-
$528 USD
View
B
Retailer 10
-
$731 USD
View
B
Retailer 11
-
$875 USD
View
B
Retailer 12
-
$1,097 USD
£864 GBP
View
Most Expensive
B
Brilliant Earth
12163591A · Oct 29
$1,110 USD
View
12 more retailers have this diamond
Prices start from $220 USDSave up to $890 USD

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
$220 USD