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Radiant|Lab Grown|IGI

0.42ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG798614949

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

Certificate IGI LG798614949

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of October 30, 2026
Save £1,021 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,276 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct lab-grown radiant diamond

This 0.42ct lab-grown radiant sits in the sub-half-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG798614949 or 798614949. Listed at 13 retailers as of October 29, 2026, with prices from £255 to £1,276, a £1,021 spread on the same certified stone. MOH London lists it at £1,276. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798614949
Dimensions5.60 × 3.64 × 2.49 mm
L/W Ratio1.54
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.60 mm3.64 mm0.42 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798614949
Side View
Table 64.0%Crown 23°Girdle: ThinPavilion 36.3°Culet: NoneDepth 68.4%

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: £1,276 GBP|Low: £245 GBP|High: £1,284 GBP|Avg: £651 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 31, 2026
Retailer 8£255 GBP
Retailer 7£296 GBP
Retailer 10£316 GBP
Retailer 6£443 GBP
Retailer 3£510 GBP
Retailer 2£515 GBP
Retailer 4£573 GBP
Retailer 5£820 GBP
Retailer 9£1,017 GBP
Retailer 11£1,240 GBP
MOH London£1,276 GBP

43 data points across 11 retailers

13 retailers£255 GBP to £1,276 GBP

A
Cheapest Retailer
-
£255 GBP
$342 USD
B+
Retailer 2
-
£296 GBP
$397 USD
View
B+
Retailer 3
-
£316 GBP
$424 USD
View
B+
Retailer 4
-
£443 GBP
A$913 AUD
View
B
Retailer 5
-
£493 GBP
View
B
Retailer 6
-
£510 GBP
$684 USD
View
B
Retailer 7
-
£515 GBP
€657 EUR
View
B
Retailer 8
-
£573 GBP
View
B
Retailer 9
-
£820 GBP
A$1,690 AUD
View
B
Retailer 10
-
£1,017 GBP
$1,363 USD
View
B
Retailer 11
-
£1,058 GBP
$1,418 USD
View
Retailer 12
-
£1,240 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
LG798614949 · Oct 29
£1,276 GBP
View
12 more retailers have this diamond
Prices start from £255 GBPSave up to £1,021 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
0.42ct Radiant
£255 GBP