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Marquise|Lab Grown|IGI

1.50ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG840628028

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840628028

Diamond specifications and retailer prices

From €282 EUR
As of November 4, 2026
Save €1,339 EUR (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,622 EUR at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise 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 LG840628028 or 840628028. Listed at 10 retailers as of November 4, 2026, with prices from €282 to €1,622, a €1,339 spread on the same certified stone. Do Amore Diamonds lists it at €1,622. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840628028
Dimensions11.94 × 5.78 × 3.79 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.94 mm5.78 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840628028
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 65.6%

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: Nov 4
Current: €1,622 EUR|Low: €282 EUR|High: €1,622 EUR|Avg: €631 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 7€282 EUR
Retailer 2€293 EUR
Retailer 3€317 EUR
Retailer 9€406 EUR
Retailer 5€675 EUR
Retailer 8€780 EUR
Retailer 4€905 EUR
Retailer 6€932 EUR
Retailer 10€1,044 EUR
Do Amore Diamonds€1,622 EUR

5 data points across 10 retailers

10 retailers€282 EUR to €1,622 EUR

B+
Cheapest Retailer
-
€282 EUR
A
Retailer 2
-
€293 EUR
View
A
Retailer 3
-
€317 EUR
View
Retailer 4
-
€406 EUR
View
Price last confirmed 10 days ago
B+
Retailer 5
-
€675 EUR
View
B
Retailer 6
-
€780 EUR
View
B
Retailer 7
-
€905 EUR
View
B
Retailer 8
-
€932 EUR
View
Retailer 9
-
€1,044 EUR
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-1220E159A · Nov 6
€1,622 EUR
$1,820 USD
View
9 more retailers have this diamond
Prices start from €282 EURSave up to €1,339 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 Marquise
€282 EUR