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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG591371622

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591371622

Diamond specifications and retailer prices

From €190 EUR
As of November 5, 2026
Save €751 EUR (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €940 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round 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 LG591371622 or 591371622. Listed at 15 retailers as of November 5, 2026, with prices from €190 to €940, a €751 spread on the same certified stone. MOH London lists it at €940. 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

1.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591371622
Dimensions7.51 × 7.48 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.51 mm7.48 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591371622
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 41°Culet: NoneDepth 60.2%

Caratlytics Score

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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 5
Current: €940 EUR|Low: €182 EUR|High: €963 EUR|Avg: €474 EUR|-1.2%
MOH London
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
November 6, 2026
Retailer 9€190 EUR
Retailer 5€215 EUR
Retailer 4€220 EUR
Retailer 3€235 EUR
Retailer 11€235 EUR
Retailer 6€394 EUR
Retailer 10€404 EUR
Retailer 2€427 EUR
Retailer 13€530 EUR
Retailer 7€659 EUR
Retailer 12€756 EUR
Retailer 8€759 EUR
Retailer 14€761 EUR
MOH London€940 EUR

45 data points across 14 retailers

15 retailers€190 EUR to €940 EUR

A
Cheapest Retailer
-
€190 EUR
A
Retailer 2
-
€215 EUR
View
Final sale: no returns
A
Retailer 3
-
€220 EUR
View
Retailer 4
-
€235 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
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€235 EUR
View
A
Retailer 6
-
€262 EUR
View
A
Retailer 7
-
€394 EUR
View
B+
Retailer 8
-
€404 EUR
View
A
Retailer 9
-
€427 EUR
View
B+
Retailer 10
-
€530 EUR
View
B+
Retailer 11
-
€659 EUR
View
B
Retailer 12
-
€756 EUR
View
B
Retailer 13
-
€759 EUR
View
B
Retailer 14
-
€761 EUR
View
Most Expensive
B
MOH London
LG591371622 · Nov 5
€940 EUR
£831 GBP
View
14 more retailers have this diamond
Prices start from €190 EURSave up to €751 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
1.54ct Round
€190 EUR