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Oval|Lab Grown|IGI

0.42ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG847655944

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847655944

Diamond specifications and retailer prices

From £293 GBP
$393 USD
As of November 1, 2026
Save £886 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,229 GBP at Riddles Jewelry · As of November 2, 2026
View at Riddles Jewelry

About this 0.42ct lab-grown oval diamond

This 0.42ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG847655944 or 847655944. Listed at 11 retailers as of November 1, 2026, with a 303% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.42
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847655944
Dimensions6.17 × 4.20 × 2.61 mm
L/W Ratio1.47
Girdle conditionFaceted
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
6.17 mm4.20 mm0.42 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847655944
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £534 GBP|Low: £293 GBP|High: £1,229 GBP|Avg: £723 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Riddles Jewelry
November 2, 2026
Retailer 6£293 GBP
Retailer 4£459 GBP
Retailer 9£468 GBP
Retailer 2£521 GBP
Retailer 1£534 GBP
Retailer 8£631 GBP
Retailer 7£980 GBP
Retailer 5£1,041 GBP
Retailer 3£1,179 GBP
Riddles Jewelry£1,229 GBP

8 data points across 10 retailers

11 retailers£293 GBP to £1,179 GBP

B+
Cheapest Retailer
-
£293 GBP
$393 USD
Final sale: no returns
B
Retailer 2
-
£459 GBP
€587 EUR
View
B
Retailer 3
-
£468 GBP
$628 USD
View
B+
Retailer 4
-
£521 GBP
View
B
Retailer 5
-
£534 GBP
ZAR 11,577 ZAR
View
B
Retailer 6
-
£544 GBP
$730 USD
View
B
Retailer 7
-
£631 GBP
$846 USD
View
B
Retailer 8
-
£980 GBP
$1,315 USD
View
B
Retailer 9
-
£1,041 GBP
CA$1,940 CAD
View
B
Retailer 10
-
£1,179 GBP
View
Most Expensive
Riddles Jewelry
1996903292 · Nov 2
£1,229 GBP
$1,649 USD
View
Price under review
10 more retailers have this diamond
Prices start from £293 GBPSave up to £886 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.

B+
0.42ct Oval
£293 GBP