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Round|Lab Grown|IGI

1.54ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG451055635

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055635

Diamond specifications and retailer prices

From €1,640 EUR
As of November 5, 2026
Save €1,926 EUR (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €5,420 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055635 or 451055635. Listed at 9 retailers as of November 5, 2026, with a 117% 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
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055635
Dimensions7.43 × 7.48 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
7.43 mm7.48 mm1.54 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055635
Side View
Table 59.5%Crown 34.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €5,420 EUR|Low: €1,575 EUR|High: €5,507 EUR|Avg: €2,948 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4€1,640 EUR
Retailer 5€1,903 EUR
Retailer 7€1,903 EUR
Retailer 2€2,083 EUR
Retailer 8€2,518 EUR
Retailer 6€2,983 EUR
Retailer 3€3,201 EUR
Retailer 9€4,259 EUR
MOH London€5,420 EUR

39 data points across 9 retailers

9 retailers€1,640 EUR to €3,566 EUR

B+
Cheapest Retailer
-
€1,640 EUR
B
Retailer 2
-
€1,785 EUR
View
Retailer 3
-
€1,903 EUR
View
Price last confirmed 25 days ago
B
Retailer 4
-
€1,903 EUR
View
B
Retailer 5
-
€2,083 EUR
View
B
Retailer 6
-
€2,983 EUR
View
B
Retailer 7
-
€3,201 EUR
View
B
Retailer 8
-
€3,566 EUR
View
Most Expensive
MOH London
LG451055635 · Nov 5
€5,420 EUR
£4,790 GBP
View
Price under review
8 more retailers have this diamond
Prices start from €1,640 EURSave up to €1,926 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.

B+
1.54ct Round
€1,640 EUR