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Radiant|Lab Grown|IGI

1.54ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG487108836

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

Certificate IGI LG487108836

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of October 27, 2026
Save £1,528 GBP (92%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,661 GBP at B2C Jewels · As of October 29, 2026
View at B2C Jewels

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 very-good cut grade and certified by IGI LG487108836 or 487108836. Listed at 10 retailers as of October 27, 2026, with prices from £134 to £1,661, a £1,528 spread on the same certified stone. B2C Jewels lists it at £1,661. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.54
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108836
Dimensions7.24 × 5.66 × 4.03 mm
L/W Ratio1.28
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
7.24 mm5.66 mm1.54 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108836
Side View
Table 66.0%Crown 47°Girdle: Slightly ThickPavilion 31.1°Culet: NoneDepth 71.2%

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: Oct 27
Current: £1,661 GBP|Low: £106 GBP|High: £1,661 GBP|Avg: £582 GBP|+4.8%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7£134 GBP
Retailer 11£150 GBP
Retailer 10£155 GBP
Retailer 5£236 GBP
Retailer 9£293 GBP
Retailer 3£364 GBP
Retailer 6£563 GBP
Retailer 4£573 GBP
Retailer 8£588 GBP
Retailer 2£861 GBP
Retailer 12£1,284 GBP
B2C Jewels£1,661 GBP

37 data points across 12 retailers

10 retailers£134 GBP to £1,661 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£150 GBP
$201 USD
View
Final sale: no returns
A
Retailer 3
-
£155 GBP
$208 USD
View
A
Retailer 4
-
£236 GBP
View
B+
Retailer 5
-
£293 GBP
$393 USD
View
B
Retailer 6
-
£563 GBP
$754 USD
View
B
Retailer 7
-
£588 GBP
$788 USD
View
B
Retailer 8
-
£861 GBP
View
B
Retailer 9
-
£1,284 GBP
$1,720 USD
View
Most Expensive
C
B2C Jewels
20038741 · Oct 29
£1,661 GBP
$2,226 USD
View
9 more retailers have this diamond
Prices start from £134 GBPSave up to £1,528 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