CaratHunter
Plans
Radiant|Lab Grown|IGI

1.33ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG670436829

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

Certificate IGI LG670436829

Diamond specifications and retailer prices

From £360 GBP
As of November 4, 2026
Save £1,216 GBP (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,576 GBP at Brilliant Earth · As of November 4, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG670436829 or 670436829. Listed at 6 retailers as of November 4, 2026, with prices from £360 to £1,576, a £1,216 spread on the same certified stone. Brilliant Earth lists it at £1,576. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670436829
Dimensions7.76 × 5.41 × 3.66 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.76 mm5.41 mm1.33 ctF / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670436829
Side View
Table 66.0%Crown 30.2°Girdle: Slightly ThickPavilion 35.4°Culet: NoneDepth 67.7%

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: Nov 4
Current: £1,576 GBP|Low: £360 GBP|High: £1,883 GBP|Avg: £936 GBP|-16.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4£360 GBP
Retailer 2£455 GBP
Retailer 5£701 GBP
Retailer 6£734 GBP
Retailer 3£1,218 GBP
Retailer 7£1,292 GBP
Brilliant Earth£1,576 GBP

12 data points across 7 retailers

6 retailers£360 GBP to £1,576 GBP

A
Cheapest Retailer
-
£360 GBP
A
Retailer 2
-
£455 GBP
View
B+
Retailer 3
-
£715 GBP
View
B+
Retailer 4
-
£734 GBP
View
Retailer 5
-
£1,218 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
13874950A · Nov 4
£1,576 GBP
$2,110 USD
View
5 more retailers have this diamond
Prices start from £360 GBPSave up to £1,216 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
£360 GBP