CaratHunter
Plans
Radiant|Lab Grown|IGI

1.50ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG544263063

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

Certificate IGI LG544263063

Diamond specifications and retailer prices

From £121 GBP
$162 USD
As of October 30, 2026
Save £585 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £706 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown radiant diamond

This 1.5ct 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 LG544263063 or 544263063. Listed at 18 retailers as of October 29, 2026, with prices from £121 to £706, a £585 spread on the same certified stone. MOH London lists it at £706. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544263063
Dimensions7.89 × 5.64 × 3.76 mm
L/W Ratio1.40
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
7.89 mm5.64 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544263063
Side View
Table 67.0%Crown 47.8°Girdle: Slightly ThickPavilion 30.3°Culet: NoneDepth 66.7%

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 30
Current: £706 GBP|Low: £116 GBP|High: £711 GBP|Avg: £307 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 11£121 GBP
Retailer 3£140 GBP
Retailer 4£150 GBP
Retailer 12£150 GBP
Retailer 2£193 GBP
Retailer 13£205 GBP
Retailer 7£265 GBP
Retailer 8£271 GBP
Retailer 9£272 GBP
Retailer 5£346 GBP
Retailer 14£483 GBP
Retailer 6£485 GBP
Retailer 10£510 GBP
MOH London£706 GBP

44 data points across 14 retailers

18 retailers£121 GBP to £706 GBP

A
Cheapest Retailer
-
£121 GBP
$162 USD
A
Retailer 2
-
£140 GBP
$188 USD
View
A
Retailer 3
-
£150 GBP
$201 USD
View
A
Retailer 4
-
£150 GBP
$201 USD
View
A
Retailer 5
-
£172 GBP
HK$1,800 HKD
View
A
Retailer 6
-
£193 GBP
View
B+
Retailer 7
-
£205 GBP
$275 USD
View
A
Retailer 8
-
£265 GBP
View
A
Retailer 9
-
£271 GBP
View
Retailer 10
-
£272 GBP
€347 EUR
View
Price last confirmed 7 days ago
A
Retailer 11
-
£325 GBP
$436 USD
View
B+
Retailer 12
-
£346 GBP
$463 USD
View
B+
Retailer 13
-
£483 GBP
$647 USD
View
B+
Retailer 14
-
£485 GBP
A$1,000 AUD
View
B+
Retailer 15
-
£495 GBP
SGD 896 SGD
View
B
Retailer 16
-
£510 GBP
$683 USD
View
Most Expensive
B
MOH London
LG544263063 · Oct 29
£706 GBP
View
16 more retailers have this diamond
Prices start from £121 GBPSave up to £585 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
1.50ct Radiant
£121 GBP