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Oval|Lab Grown|IGI

0.42ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG799697386

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG799697386

Diamond specifications and retailer prices

From £144 GBP
$193 USD
As of October 31, 2026
Save £977 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,362 GBP at MOH London · As of November 1, 2026
View at MOH London

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 LG799697386 or 799697386. Listed at 21 retailers as of October 31, 2026, with a 678% 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 angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799697386
Dimensions6.17 × 4.26 × 2.63 mm
L/W Ratio1.45
Girdle conditionFaceted
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
6.17 mm4.26 mm0.42 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799697386
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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 31
Current: £1,362 GBP|Low: £245 GBP|High: £1,378 GBP|Avg: £599 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10£254 GBP
Retailer 3£285 GBP
Retailer 11£316 GBP
Retailer 12£316 GBP
Retailer 4£362 GBP
Retailer 9£469 GBP
Retailer 8£536 GBP
Retailer 6£630 GBP
Retailer 2£633 GBP
Retailer 7£709 GBP
Retailer 5£759 GBP
Retailer 13£1,121 GBP
MOH London£1,362 GBP

41 data points across 13 retailers

21 retailers£144 GBP to £1,121 GBP

A
Cheapest Retailer
-
£144 GBP
$193 USD
Retailer 2
-
£254 GBP
$341 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
£254 GBP
$341 USD
View
B+
Retailer 4
-
£285 GBP
$382 USD
View
Final sale: no returns
Retailer 5
-
£296 GBP
$396 USD
View
Price last confirmed 38 days ago
Retailer 6
-
£312 GBP
$418 USD
View
Price last confirmed 38 days ago
Retailer 7
-
£316 GBP
$423 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£316 GBP
$423 USD
View
B+
Retailer 9
-
£362 GBP
$485 USD
View
B+
Retailer 10
-
£469 GBP
$628 USD
View
B+
Retailer 11
-
£536 GBP
€684 EUR
View
B
Retailer 12
-
£630 GBP
View
B
Retailer 13
-
£633 GBP
ZAR 13,699 ZAR
View
B
Retailer 14
-
£709 GBP
$950 USD
View
B
Retailer 15
-
£759 GBP
$1,016 USD
View
B
Retailer 16
-
£1,043 GBP
CA$1,940 CAD
View
B
Retailer 17
-
£1,121 GBP
$1,502 USD
View
Retailer 18
-
£1,231 GBP
$1,649 USD
View
Price under review
Retailer 19
-
£1,237 GBP
$1,657 USD
View
Price under review
Retailer 20
-
£1,237 GBP
$1,657 USD
View
Price under review
Most Expensive
MOH London
LG799697386 · Nov 1
£1,362 GBP
View
Price under review
20 more retailers have this diamond
Prices start from £144 GBPSave up to £977 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 Oval
£144 GBP