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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 €193 EUR
As of November 6, 2026
Save €766 EUR (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €958 EUR 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 €193 to €958, a €766 spread on the same certified stone. Brilliant Earth lists it at €958. 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: €958 EUR|Low: €190 EUR|High: €1,109 EUR|Avg: €523 EUR|-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€193 EUR
Retailer 4€223 EUR
Retailer 5€238 EUR
Retailer 7€245 EUR
Retailer 8€247 EUR
Retailer 10€408 EUR
Retailer 16€409 EUR
Retailer 2€423 EUR
Retailer 9€437 EUR
Retailer 6€472 EUR
Retailer 15€643 EUR
Retailer 13€767 EUR
Retailer 3€781 EUR
Retailer 14€813 EUR
Retailer 11€953 EUR
Brilliant Earth€958 EUR

45 data points across 16 retailers

17 retailers€193 EUR to €958 EUR

A
Cheapest Retailer
-
€193 EUR
A
Retailer 2
-
€223 EUR
View
A
Retailer 3
-
€238 EUR
View
Retailer 4
-
€245 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
-
€247 EUR
View
Final sale: no returns
B+
Retailer 6
-
€408 EUR
View
B+
Retailer 7
-
€409 EUR
View
B+
Retailer 8
-
€423 EUR
View
B+
Retailer 9
-
€437 EUR
View
B+
Retailer 10
-
€472 EUR
View
B+
Retailer 11
-
€487 EUR
View
B+
Retailer 12
-
€643 EUR
View
B
Retailer 13
-
€767 EUR
View
B
Retailer 14
-
€781 EUR
View
B
Retailer 15
-
€813 EUR
View
B
Retailer 16
-
€953 EUR
View
Most Expensive
B
Brilliant Earth
16911377A · Nov 6
€958 EUR
$1,070 USD
View
16 more retailers have this diamond
Prices start from €193 EURSave up to €766 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
1.50ct Heart
€193 EUR