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Radiant|Lab Grown|IGI

1.54ct H SI1 Radiant Lab Grown Diamond

EX • H/SI1 • IGI LG733547048

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG733547048

Diamond specifications and retailer prices

From £324 GBP
€413 EUR
As of October 31, 2026
Save £462 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £786 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733547048 or 733547048. Listed at 6 retailers as of October 26, 2026, with prices from £324 to £786, a £462 spread on the same certified stone. MOH London lists it at £786. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733547048
Dimensions8.79 × 5.65 × 3.55 mm
L/W Ratio1.56
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.79 mm5.65 mm1.54 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733547048
Side View
Table 63.0%Crown 39.8°Girdle: MediumPavilion 31.4°Culet: NoneDepth 62.8%

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: Oct 31
Current: £786 GBP|Low: £279 GBP|High: £794 GBP|Avg: £467 GBP|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2£324 GBP
Retailer 4£337 GBP
Retailer 5£356 GBP
Retailer 3£443 GBP
Retailer 6£627 GBP
MOH London£786 GBP

14 data points across 6 retailers

6 retailers£324 GBP to £786 GBP

A
Cheapest Retailer
-
£324 GBP
€413 EUR
B+
Retailer 2
-
£337 GBP
$451 USD
View
A
Retailer 3
-
£356 GBP
$477 USD
View
A
Retailer 4
-
£443 GBP
$594 USD
View
Retailer 5
-
£627 GBP
$840 USD
View
Price last confirmed 34 days ago
Most Expensive
A
MOH London
LG733547048 · Oct 26
£786 GBP
View
5 more retailers have this diamond
Prices start from £324 GBPSave up to £462 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 Radiant
£324 GBP