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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG570365982

Shape and cutting style on the report: Round brilliant

Certificate IGI LG570365982

Diamond specifications and retailer prices

From £215 GBP
As of November 4, 2026
Save £659 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £874 GBP 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 LG570365982 or 570365982. Listed at 11 retailers as of November 4, 2026, with prices from £215 to £874, a £659 spread on the same certified stone. MOH London lists it at £874. 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 angle32.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570365982
Dimensions7.50 × 7.46 × 4.50 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
7.50 mm7.46 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570365982
Side View
Table 59.5%Crown 32.8°GirdlePavilion 41.1°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £874 GBP|Low: £156 GBP|High: £964 GBP|Avg: £508 GBP|-8.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£215 GBP
Retailer 3£334 GBP
Retailer 8£342 GBP
Retailer 5£369 GBP
Retailer 2£408 GBP
Retailer 4£462 GBP
Retailer 6£705 GBP
Retailer 7£741 GBP
MOH London£874 GBP

41 data points across 9 retailers

11 retailers£215 GBP to £874 GBP

Retailer 1
-
£192 GBP
Price last confirmed 44 days ago
A
Retailer 2
-
£215 GBP
View
Final sale: no returns
Retailer 3
-
£222 GBP
View
Price last confirmed 45 days ago
Retailer 4
-
£235 GBP
View
Price last confirmed 44 days ago
A
Retailer 5
-
£334 GBP
View
B+
Retailer 6
-
£369 GBP
View
A
Retailer 7
-
£408 GBP
View
B+
Retailer 8
-
£462 GBP
View
B
Retailer 9
-
£705 GBP
View
B
Retailer 10
-
£741 GBP
View
Most Expensive
B
MOH London
LG570365982 · Nov 5
£874 GBP
View
10 more retailers have this diamond
Prices start from £215 GBPSave up to £659 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
£215 GBP