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Radiant|Lab Grown|IGI

1.46ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG744515434

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

Certificate IGI LG744515434

Diamond specifications and retailer prices

From £632 GBP
$847 USD
As of October 30, 2026
Save £2,592 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,224 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.46ct lab-grown radiant diamond

This 1.46ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515434 or 744515434. Listed at 13 retailers as of October 29, 2026, with prices from £632 to £3,224, a £2,592 spread on the same certified stone. Brilliant Earth lists it at £3,224. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.46
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515434
Dimensions8.20 × 5.74 × 3.65 mm
L/W Ratio1.43
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
8.20 mm5.74 mm1.46 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515434
Side View
Table 63.0%Crown 42.5°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 63.6%

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: £3,224 GBP|Low: £632 GBP|High: £3,321 GBP|Avg: £1,459 GBP|-2.9%
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
October 31, 2026
Retailer 11£632 GBP
Retailer 10£640 GBP
Retailer 13£669 GBP
Retailer 3£718 GBP
Retailer 9£777 GBP
Retailer 2£792 GBP
Retailer 7£874 GBP
Retailer 12£1,199 GBP
Retailer 5£1,736 GBP
Retailer 4£1,845 GBP
Retailer 6£2,133 GBP
Retailer 8£2,418 GBP
Brilliant Earth£3,224 GBP

42 data points across 13 retailers

13 retailers£632 GBP to £3,224 GBP

A
Cheapest Retailer
-
£632 GBP
$847 USD
A
Retailer 2
-
£640 GBP
HK$6,700 HKD
View
A
Retailer 3
-
£669 GBP
$896 USD
View
A
Retailer 4
-
£718 GBP
$962 USD
View
Retailer 5
-
£777 GBP
€991 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£792 GBP
View
B+
Retailer 7
-
£874 GBP
ZAR 18,908 ZAR
View
B+
Retailer 8
-
£1,199 GBP
$1,606 USD
View
B
Retailer 9
-
£1,736 GBP
$2,326 USD
View
B
Retailer 10
-
£1,845 GBP
SGD 3,340 SGD
View
B
Retailer 11
-
£2,133 GBP
View
Retailer 12
-
£2,418 GBP
$3,240 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
17457378Y · Oct 29
£3,224 GBP
$4,320 USD
View
12 more retailers have this diamond
Prices start from £632 GBPSave up to £2,592 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
1.46ct Radiant
£632 GBP