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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG773623838

Shape and cutting style on the report: Round brilliant

Certificate IGI LG773623838

Diamond specifications and retailer prices

From £149 GBP
As of November 5, 2026
Save £713 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £862 GBP at MOH London · As of November 2, 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 LG773623838 or 773623838. Listed at 15 retailers as of November 2, 2026, with prices from £149 to £862, a £713 spread on the same certified stone. MOH London lists it at £862. 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 angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773623838
Dimensions7.45 × 7.41 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.45 mm7.41 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773623838
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.3%

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 5
Current: £862 GBP|Low: £149 GBP|High: £866 GBP|Avg: £421 GBP|+3.2%
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
Retailer 15
November 5, 2026
Retailer 3£149 GBP
Retailer 12£172 GBP
Retailer 6£184 GBP
Retailer 11£184 GBP
Retailer 14£249 GBP
Retailer 4£325 GBP
Retailer 2£334 GBP
Retailer 13£376 GBP
Retailer 9£397 GBP
Retailer 10£419 GBP
Retailer 8£539 GBP
Retailer 5£593 GBP
Retailer 15£594 GBP
Retailer 7£661 GBP
MOH London£862 GBP

42 data points across 15 retailers

15 retailers£149 GBP to £862 GBP

A
Cheapest Retailer
-
£149 GBP
A
Retailer 2
-
£172 GBP
View
A
Retailer 3
-
£184 GBP
View
Retailer 4
-
£184 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£249 GBP
View
A
Retailer 6
-
£325 GBP
View
A
Retailer 7
-
£334 GBP
View
A
Retailer 8
-
£376 GBP
View
B+
Retailer 9
-
£397 GBP
View
B+
Retailer 10
-
£419 GBP
View
B+
Retailer 11
-
£539 GBP
View
B+
Retailer 12
-
£593 GBP
View
B+
Retailer 13
-
£594 GBP
View
B
Retailer 14
-
£661 GBP
View
Most Expensive
B
MOH London
LG773623838 · Nov 2
£862 GBP
View
14 more retailers have this diamond
Prices start from £149 GBPSave up to £713 GBP

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
£149 GBP