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Radiant|Lab Grown|IGI

1.54ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG671448119

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

Certificate IGI LG671448119

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of October 27, 2026
Save £1,157 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,292 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG671448119 or 671448119. Listed at 11 retailers as of October 27, 2026, with prices from £134 to £1,292, a £1,157 spread on the same certified stone. Do Amore Diamonds lists it at £1,292. 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 angle44.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671448119
Dimensions8.06 × 5.62 × 3.81 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.06 mm5.62 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671448119
Side View
Table 63.0%Crown 44.6°Girdle: MediumPavilion 34.6°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,292 GBP|Low: £129 GBP|High: £1,307 GBP|Avg: £530 GBP|-1.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6£134 GBP
Retailer 3£151 GBP
Retailer 11£156 GBP
Retailer 2£237 GBP
Retailer 9£295 GBP
Retailer 5£566 GBP
Retailer 10£591 GBP
Retailer 8£592 GBP
Retailer 7£811 GBP
Retailer 4£862 GBP
Do Amore Diamonds£1,292 GBP

36 data points across 11 retailers

11 retailers£134 GBP to £1,292 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£151 GBP
$201 USD
View
Final sale: no returns
A
Retailer 3
-
£156 GBP
$208 USD
View
A
Retailer 4
-
£237 GBP
View
B+
Retailer 5
-
£295 GBP
$393 USD
View
B
Retailer 6
-
£566 GBP
$754 USD
View
B+
Retailer 7
-
£591 GBP
$787 USD
View
B+
Retailer 8
-
£592 GBP
$788 USD
View
B
Retailer 9
-
£811 GBP
$1,080 USD
View
B
Retailer 10
-
£862 GBP
View
Most Expensive
B
Do Amore Diamonds
27-A6EB7034C · Oct 29
£1,292 GBP
$1,720 USD
View
10 more retailers have this diamond
Prices start from £134 GBPSave up to £1,157 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
£134 GBP