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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 €197 EUR
$220 USD
As of October 30, 2026
Save €797 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €994 EUR 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 €197 to €994, a €797 spread on the same certified stone. Brilliant Earth lists it at €994. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €994 EUR|Low: €132 EUR|High: €1,029 EUR|Avg: €474 EUR|-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€132 EUR
Retailer 4€197 EUR
Retailer 11€220 EUR
Retailer 13€228 EUR
Retailer 7€243 EUR
Retailer 12€327 EUR
Retailer 3€435 EUR
Retailer 6€452 EUR
Retailer 9€473 EUR
Retailer 2€632 EUR
Retailer 10€783 EUR
Retailer 8€982 EUR
Brilliant Earth€994 EUR

44 data points across 13 retailers

13 retailers€197 EUR to €994 EUR

A
Cheapest Retailer
-
€197 EUR
$220 USD
A
Retailer 2
-
€220 EUR
$246 USD
View
Final sale: no returns
A
Retailer 3
-
€228 EUR
$255 USD
View
A
Retailer 4
-
€243 EUR
$272 USD
View
A
Retailer 5
-
€252 EUR
$281 USD
View
B+
Retailer 6
-
€327 EUR
$365 USD
View
B+
Retailer 7
-
€435 EUR
$486 USD
View
B+
Retailer 8
-
€452 EUR
£398 GBP
View
B+
Retailer 9
-
€473 EUR
$528 USD
View
B+
Retailer 10
-
€632 EUR
$706 USD
View
B
Retailer 11
-
€783 EUR
$875 USD
View
B
Retailer 12
-
€982 EUR
£864 GBP
View
Most Expensive
B
Brilliant Earth
12163591A · Oct 29
€994 EUR
$1,110 USD
View
12 more retailers have this diamond
Prices start from €197 EURSave up to €797 EUR

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
€197 EUR