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Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG727587236

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

Certificate IGI LG727587236

Diamond specifications and retailer prices

From £215 GBP
$289 USD
As of November 2, 2026
Save £1,692 GBP (89%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £2,414 GBP at Brilliant Earth · As of October 23, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727587236 or 727587236. Listed at 26 retailers as of November 2, 2026, with a 786% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727587236
Dimensions8.51 × 5.62 × 3.63 mm
L/W Ratio1.51
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
8.51 mm5.62 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727587236
Side View
Table 63.0%Crown 42°Girdle: MediumPavilion 33.6°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 2
Current: £2,414 GBP|Low: £206 GBP|High: £2,414 GBP|Avg: £832 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 25
November 2, 2026
Retailer 3£215 GBP
Retailer 23£250 GBP
Retailer 22£256 GBP
Retailer 25£267 GBP
Retailer 6£380 GBP
Retailer 16£391 GBP
Retailer 7£414 GBP
Retailer 14£461 GBP
Retailer 19£479 GBP
Retailer 13£508 GBP
Retailer 2£525 GBP
Retailer 9£580 GBP
Retailer 15£664 GBP
Retailer 20£686 GBP
Retailer 5£819 GBP
Retailer 4£946 GBP
Retailer 11£1,025 GBP
Retailer 17£1,067 GBP
Retailer 10£1,097 GBP
Retailer 18£1,140 GBP
Retailer 21£1,181 GBP
Retailer 8£1,225 GBP
Retailer 24£1,829 GBP
Retailer 12£1,908 GBP
Brilliant Earth£2,414 GBP

35 data points across 25 retailers

26 retailers£215 GBP to £1,908 GBP

A+
Cheapest Retailer
-
£215 GBP
$289 USD
A
Retailer 2
-
£250 GBP
$335 USD
View
A
Retailer 3
-
£256 GBP
$344 USD
View
Final sale: no returns
A
Retailer 4
-
£267 GBP
$358 USD
View
A
Retailer 5
-
£380 GBP
$510 USD
View
A
Retailer 6
-
£391 GBP
HK$4,100 HKD
View
A
Retailer 7
-
£414 GBP
$555 USD
View
A
Retailer 8
-
£461 GBP
$618 USD
View
A
Retailer 9
-
£479 GBP
€612 EUR
View
A
Retailer 10
-
£508 GBP
ZAR 11,004 ZAR
View
A
Retailer 11
-
£525 GBP
View
A
Retailer 12
-
£580 GBP
$778 USD
View
A
Retailer 13
-
£664 GBP
$891 USD
View
A
Retailer 14
-
£686 GBP
A$1,416 AUD
View
B+
Retailer 15
-
£819 GBP
$1,099 USD
View
B+
Retailer 16
-
£946 GBP
$1,270 USD
View
B+
Retailer 17
-
£1,025 GBP
$1,376 USD
View
B+
Retailer 18
-
£1,067 GBP
$1,432 USD
View
B+
Retailer 19
-
£1,097 GBP
$1,473 USD
View
B+
Retailer 20
-
£1,140 GBP
SGD 2,067 SGD
View
B+
Retailer 21
-
£1,181 GBP
View
Retailer 22
-
£1,225 GBP
A$2,530 AUD
View
Price last confirmed 28 days ago
B
Retailer 23
-
£1,829 GBP
$2,455 USD
View
Retailer 24
-
£1,882 GBP
$2,525 USD
View
Price last confirmed 35 days ago
B
Retailer 25
-
£1,908 GBP
$2,560 USD
View
Most Expensive
Brilliant Earth
16223414Y · Oct 23
£2,414 GBP
$3,240 USD
View
Price last confirmed 10 days ago
25 more retailers have this diamond
Prices start from £215 GBPSave up to £1,692 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
£215 GBP