Radiant|Lab Grown|IGI

1.50ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG598394317

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

Certificate IGI LG598394317

Diamond specifications and retailer prices

From £332 GBP
$445 USD
As of October 25, 2026
Save £1,773 GBP (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,105 GBP at Brilliant Earth · As of October 6, 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 very-good cut grade and certified by IGI LG598394317 or 598394317. Listed at 22 retailers as of October 25, 2026, with a 534% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598394317
Dimensions7.76 × 5.67 × 3.96 mm
L/W Ratio1.37
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
7.76 mm5.67 mm1.50 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598394317
Side View
Table 66.0%Crown 36.2°Girdle: Slightly ThickPavilion 36.7°Culet: NoneDepth 69.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: £2,105 GBP|Low: £191 GBP|High: £2,172 GBP|Avg: £683 GBP|-3.1%
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
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Retailer 15
October 26, 2026
Retailer 5£191 GBP
Retailer 8£222 GBP
Retailer 4£247 GBP
Retailer 6£332 GBP
Retailer 3£369 GBP
Retailer 13£404 GBP
Retailer 12£418 GBP
Retailer 7£443 GBP
Retailer 10£459 GBP
Retailer 11£580 GBP
Retailer 15£760 GBP
Retailer 2£951 GBP
Retailer 9£992 GBP
Retailer 14£1,687 GBP
Brilliant Earth£2,105 GBP

36 data points across 15 retailers

22 retailers£332 GBP to £2,105 GBP

Retailer 1
-
£191 GBP
$256 USD
Price last confirmed 30 days ago
Retailer 2
-
£231 GBP
$310 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£247 GBP
$331 USD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
£332 GBP
$445 USD
View
Retailer 5
-
£369 GBP
$495 USD
View
Price last confirmed 5 days ago
Retailer 6
-
£404 GBP
€515 EUR
View
Price last confirmed 8 days ago
Retailer 7
-
£418 GBP
ZAR 9,050 ZAR
View
Price last confirmed 8 days ago
A
Retailer 8
-
£443 GBP
$593 USD
View
Retailer 9
-
£459 GBP
View
Price last confirmed 7 days ago
Retailer 10
-
£570 GBP
$764 USD
View
Price last confirmed 26 days ago
Retailer 11
-
£580 GBP
A$1,196 AUD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£741 GBP
$993 USD
View
B+
Retailer 13
-
£760 GBP
$1,018 USD
View
Retailer 14
-
£795 GBP
$1,065 USD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
£833 GBP
$1,116 USD
View
Retailer 16
-
£946 GBP
A$1,950 AUD
View
Price last confirmed 156 days ago
B+
Retailer 17
-
£951 GBP
$1,274 USD
View
B+
Retailer 18
-
£992 GBP
View
Retailer 19
-
£1,019 GBP
$1,365 USD
View
Price last confirmed 7 days ago
Retailer 20
-
£1,687 GBP
$2,260 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£2,105 GBP
$2,820 USD
View
Most Expensive
Brilliant Earth
14228520A · Oct 6
£2,105 GBP
$2,820 USD
View
Price last confirmed 25 days ago
21 more retailers have this diamond
Prices start from £332 GBPSave up to £1,773 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
£332 GBP