CaratHunter
Plans
Radiant|Lab Grown|IGI

1.50ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG744515326

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

Certificate IGI LG744515326

Diamond specifications and retailer prices

From £193 GBP
$258 USD
As of October 30, 2026
Save £1,546 GBP (89%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £1,739 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515326 or 744515326. Listed at 30 retailers as of October 30, 2026, with prices from £193 to £1,739, a £1,546 spread on the same certified stone. Brilliant Earth lists it at £1,739. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515326
Dimensions5.72 × 5.72 × 3.73 mm
L/W Ratio1.00
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
5.72 mm5.72 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515326
Side View
Table 62.0%Crown 42.3°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 65.2%

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: £1,739 GBP|Low: £193 GBP|High: £2,090 GBP|Avg: £785 GBP|-16.8%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 4£193 GBP
Retailer 20£228 GBP
Retailer 3£351 GBP
Retailer 12£363 GBP
Retailer 5£373 GBP
Retailer 16£435 GBP
Retailer 10£435 GBP
Retailer 19£453 GBP
Retailer 13£466 GBP
Retailer 6£579 GBP
Retailer 11£591 GBP
Retailer 18£614 GBP
Retailer 22£734 GBP
Retailer 8£940 GBP
Retailer 14£972 GBP
Retailer 7£1,028 GBP
Retailer 15£1,042 GBP
Retailer 2£1,057 GBP
Retailer 17£1,062 GBP
Retailer 21£1,597 GBP
Retailer 9£1,709 GBP
Brilliant Earth£1,739 GBP

38 data points across 22 retailers

30 retailers£193 GBP to £1,739 GBP

A
Cheapest Retailer
-
£193 GBP
$258 USD
Retailer 2
-
£193 GBP
$258 USD
View
Price last confirmed 24 days ago
Retailer 3
-
£201 GBP
$269 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
£228 GBP
$306 USD
View
Final sale: no returns
Retailer 5
-
£233 GBP
$312 USD
View
Price last confirmed 35 days ago
Retailer 6
-
£239 GBP
$320 USD
View
Price last confirmed 29 days ago
Retailer 7
-
£246 GBP
$329 USD
View
Price last confirmed 33 days ago
A
Retailer 8
-
£351 GBP
$470 USD
View
A
Retailer 9
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 10
-
£373 GBP
$500 USD
View
A
Retailer 11
-
£435 GBP
€555 EUR
View
A
Retailer 12
-
£435 GBP
$583 USD
View
A
Retailer 13
-
£453 GBP
ZAR 9,812 ZAR
View
A
Retailer 14
-
£466 GBP
View
A
Retailer 15
-
£579 GBP
$776 USD
View
A
Retailer 16
-
£591 GBP
$792 USD
View
A
Retailer 17
-
£614 GBP
A$1,265 AUD
View
B+
Retailer 18
-
£734 GBP
$984 USD
View
B+
Retailer 19
-
£848 GBP
$1,136 USD
View
Retailer 20
-
£848 GBP
$1,136 USD
View
Price last confirmed 22 days ago
Retailer 21
-
£884 GBP
$1,184 USD
View
Price last confirmed 31 days ago
B+
Retailer 22
-
£940 GBP
$1,259 USD
View
B+
Retailer 23
-
£972 GBP
$1,302 USD
View
B+
Retailer 24
-
£1,028 GBP
$1,377 USD
View
B+
Retailer 25
-
£1,042 GBP
SGD 1,886 SGD
View
B+
Retailer 26
-
£1,057 GBP
View
B+
Retailer 27
-
£1,062 GBP
A$2,189 AUD
View
Retailer 28
-
£1,597 GBP
$2,140 USD
View
Price last confirmed 11 days ago
B
Retailer 29
-
£1,709 GBP
$2,290 USD
View
Most Expensive
B
Brilliant Earth
17457319Y · Oct 31
£1,739 GBP
$2,330 USD
View
29 more retailers have this diamond
Prices start from £193 GBPSave up to £1,546 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
£193 GBP