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Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593987

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

Certificate IGI LG743593987

Diamond specifications and retailer prices

From £215 GBP
$289 USD
As of October 30, 2026
Save £2,199 GBP (91%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: £2,414 GBP at Brilliant Earth · As of October 28, 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 LG743593987 or 743593987. Listed at 31 retailers as of October 28, 2026, with prices from £215 to £2,414, a £2,199 spread on the same certified stone. Brilliant Earth lists it at £2,414. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593987
Dimensions5.62 × 5.62 × 3.66 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
5.62 mm5.62 mm1.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593987
Side View
Table 60.0%Crown 38.6°Girdle: MED-STKPavilion 31.7°Culet: NoneDepth 65.1%

Caratlytics Score

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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 30
Current: £2,414 GBP|Low: £215 GBP|High: £2,414 GBP|Avg: £803 GBP
Brilliant Earth
Retailer 2
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Retailer 24
November 2, 2026
Retailer 6£215 GBP
Retailer 9£256 GBP
Retailer 17£265 GBP
Retailer 22£313 GBP
Retailer 24£380 GBP
Retailer 14£391 GBP
Retailer 7£414 GBP
Retailer 11£461 GBP
Retailer 19£479 GBP
Retailer 13£508 GBP
Retailer 2£525 GBP
Retailer 8£580 GBP
Retailer 12£664 GBP
Retailer 20£686 GBP
Retailer 23£819 GBP
Retailer 3£1,025 GBP
Retailer 15£1,067 GBP
Retailer 5£1,097 GBP
Retailer 16£1,140 GBP
Retailer 18£1,179 GBP
Retailer 10£1,215 GBP
Retailer 21£1,829 GBP
Retailer 4£1,908 GBP
Brilliant Earth£2,414 GBP

39 data points across 24 retailers

31 retailers£215 GBP to £2,414 GBP

A
Cheapest Retailer
-
£215 GBP
$289 USD
Retailer 2
-
£215 GBP
$289 USD
View
Price last confirmed 25 days ago
Retailer 3
-
£229 GBP
$307 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
£256 GBP
$344 USD
View
Final sale: no returns
Retailer 5
-
£265 GBP
$356 USD
View
Price last confirmed 36 days ago
Retailer 6
-
£267 GBP
$358 USD
View
Price last confirmed 30 days ago
Retailer 7
-
£279 GBP
$375 USD
View
Price last confirmed 35 days ago
Retailer 8
-
£313 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
-
£380 GBP
$510 USD
View
A
Retailer 10
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£391 GBP
HK$4,100 HKD
View
A
Retailer 11
-
£414 GBP
$555 USD
View
A
Retailer 12
-
£461 GBP
$618 USD
View
A
Retailer 13
-
£479 GBP
€612 EUR
View
A
Retailer 14
-
£508 GBP
ZAR 11,004 ZAR
View
A
Retailer 15
-
£525 GBP
View
A
Retailer 16
-
£580 GBP
$778 USD
View
A
Retailer 17
-
£664 GBP
$891 USD
View
A
Retailer 18
-
£686 GBP
A$1,416 AUD
View
B+
Retailer 19
-
£819 GBP
$1,099 USD
View
B+
Retailer 20
-
£946 GBP
$1,270 USD
View
Retailer 21
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£946 GBP
$1,270 USD
View
Price last confirmed 23 days ago
Retailer 22
-
£1,006 GBP
$1,350 USD
View
Price last confirmed 33 days ago
B+
Retailer 23
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£1,025 GBP
$1,376 USD
View
B+
Retailer 24
-
£1,067 GBP
$1,432 USD
View
B+
Retailer 25
-
£1,097 GBP
$1,473 USD
View
B+
Retailer 26
-
£1,140 GBP
SGD 2,067 SGD
View
B+
Retailer 27
-
£1,179 GBP
View
Retailer 28
-
£1,215 GBP
A$2,508 AUD
View
Price last confirmed 30 days ago
B
Retailer 29
-
£1,829 GBP
$2,455 USD
View
B
Retailer 30
-
£1,908 GBP
$2,560 USD
View
Most Expensive
B
Brilliant Earth
17457020Y · Oct 28
£2,414 GBP
$3,240 USD
View
30 more retailers have this diamond
Prices start from £215 GBPSave up to £2,199 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