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Radiant|Lab Grown|IGI

0.40ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG799603132

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

Certificate IGI LG799603132

Diamond specifications and retailer prices

From £244 GBP
$327 USD
As of October 30, 2026
Save £976 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,220 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct lab-grown radiant diamond

This 0.4ct lab-grown radiant sits in the sub-half-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799603132 or 799603132. Listed at 13 retailers as of October 29, 2026, with prices from £244 to £1,220, a £976 spread on the same certified stone. MOH London lists it at £1,220. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.4°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799603132
Dimensions5.22 × 3.58 × 5.22 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.22 mm3.58 mm0.40 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799603132
Side View
Table 63.0%Crown 25.4°Girdle: MediumPavilion 37.1°Culet: NoneDepth 70.7%

Caratlytics Score

How it works →
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: £1,220 GBP|Low: £234 GBP|High: £1,227 GBP|Avg: £625 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7£244 GBP
Retailer 11£283 GBP
Retailer 8£303 GBP
Retailer 5£422 GBP
Retailer 10£490 GBP
Retailer 6£492 GBP
Retailer 2£546 GBP
Retailer 4£784 GBP
Retailer 9£973 GBP
Retailer 3£1,183 GBP
MOH London£1,220 GBP

43 data points across 11 retailers

13 retailers£244 GBP to £1,220 GBP

A
Cheapest Retailer
-
£244 GBP
$327 USD
A
Retailer 2
-
£283 GBP
$379 USD
View
B+
Retailer 3
-
£303 GBP
$406 USD
View
B+
Retailer 4
-
£422 GBP
A$869 AUD
View
B
Retailer 5
-
£490 GBP
$657 USD
View
Retailer 6
-
£492 GBP
€628 EUR
View
Price last confirmed 7 days ago
B
Retailer 7
-
£493 GBP
View
B+
Retailer 8
-
£546 GBP
View
B
Retailer 9
-
£784 GBP
A$1,617 AUD
View
B
Retailer 10
-
£973 GBP
$1,304 USD
View
B
Retailer 11
-
£1,014 GBP
$1,359 USD
View
B
Retailer 12
-
£1,183 GBP
View
Most Expensive
B
MOH London
LG799603132 · Oct 29
£1,220 GBP
View
12 more retailers have this diamond
Prices start from £244 GBPSave up to £976 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
0.40ct Radiant
£244 GBP