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Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG844647025

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

Certificate IGI LG844647025

Diamond specifications and retailer prices

From £359 GBP
As of November 4, 2026
Save £1,397 GBP (80%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,756 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.33ct lab-grown radiant diamond

This 1.33ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844647025 or 844647025. Listed at 6 retailers as of November 3, 2026, with prices from £359 to £1,756, a £1,397 spread on the same certified stone. Brilliant Earth lists it at £1,756. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844647025
Dimensions7.84 × 5.42 × 3.76 mm
L/W Ratio1.45
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
7.84 mm5.42 mm1.33 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844647025
Side View
Table 62.0%Crown 41.2°Girdle: MediumPavilion 35.9°CuletDepth 69.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,756 GBP|Low: £359 GBP|High: £2,474 GBP|Avg: £940 GBP|-29.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4£359 GBP
Retailer 6£410 GBP
Retailer 5£517 GBP
Retailer 2£581 GBP
Retailer 3£848 GBP
Retailer 7£1,374 GBP
Brilliant Earth£1,756 GBP

14 data points across 7 retailers

6 retailers£359 GBP to £1,756 GBP

A
Cheapest Retailer
-
£359 GBP
Retailer 2
-
£517 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£581 GBP
View
B+
Retailer 4
-
£848 GBP
View
Retailer 5
-
£1,374 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
22463676A · Nov 3
£1,756 GBP
$2,370 USD
View
5 more retailers have this diamond
Prices start from £359 GBPSave up to £1,397 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
1.33ct Radiant
£359 GBP