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1.54ct E I1 Round Lab Grown Diamond

ID • E/I1 • IGI LG517208140

Shape and cutting style on the report: Round brilliant

Certificate IGI LG517208140

Diamond specifications and retailer prices

From £291 GBP
$388 USD
As of October 28, 2026
Save £483 GBP (62%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £774 GBP at MOH London · As of October 29, 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 I1 clarity (included), with a top-tier cut grade and certified by IGI LG517208140 or 517208140. Listed at 2 retailers as of October 28, 2026, with prices from £291 to £774, a £483 spread on the same certified stone. MOH London lists it at £774. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
I1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517208140
Dimensions7.40 × 7.38 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.40 mm7.38 mm1.54 ctE / I1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517208140
Side View
Table 56.5%Crown 34.6°Girdle: MED-STKPavilion 40.9°CuletDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: £774 GBP|Low: £224 GBP|High: £779 GBP|Avg: £514 GBP|-0.5%
MOH London
Retailer 2
October 29, 2026
Retailer 2£291 GBP
MOH London£774 GBP

12 data points across 2 retailers

2 retailers£291 GBP to £774 GBP

B+
Cheapest Retailer
-
£291 GBP
$388 USD
Most Expensive
B
MOH London
LG517208140 · Oct 29
£774 GBP
View
1 more retailer has this diamond
Prices start from £291 GBPSave up to £483 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.

B+
1.54ct Round
£291 GBP