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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG779631721

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779631721

Diamond specifications and retailer prices

From €403 EUR
As of November 4, 2026
Save €158 EUR (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,010 EUR at MOH London · As of October 25, 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 LG779631721 or 779631721. Listed at 11 retailers as of November 4, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779631721
Dimensions7.45 × 7.51 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.51 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779631721
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 60.9%

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 4
Current: €1,010 EUR|Low: €176 EUR|High: €1,319 EUR|Avg: €695 EUR|-15.4%
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
October 29, 2026
Retailer 14€176 EUR
Retailer 9€306 EUR
Retailer 10€307 EUR
Retailer 2€355 EUR
Retailer 11€374 EUR
Retailer 8€390 EUR
Retailer 12€403 EUR
Retailer 7€560 EUR
Retailer 5€694 EUR
Retailer 4€847 EUR
Retailer 3€886 EUR
Retailer 13€999 EUR
MOH London€1,010 EUR
Retailer 6€1,319 EUR

36 data points across 14 retailers

11 retailers€403 EUR to €560 EUR

Retailer 1
-
€306 EUR
Price last confirmed 10 days ago
Retailer 2
-
€307 EUR
View
Price last confirmed 11 days ago
Retailer 3
-
€355 EUR
View
Price last confirmed 8 days ago
Retailer 4
-
€390 EUR
View
Price last confirmed 9 days ago
A
Retailer 5
-
€403 EUR
View
B+
Retailer 6
-
€560 EUR
View
Retailer 7
-
€694 EUR
View
Price last confirmed 10 days ago
Retailer 8
-
€847 EUR
View
Price last confirmed 9 days ago
Retailer 9
-
€886 EUR
View
Price last confirmed 9 days ago
Retailer 10
-
€999 EUR
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG779631721 · Oct 25
€1,010 EUR
£893 GBP
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from €403 EURSave up to €158 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
€403 EUR