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Oval|Lab Grown|IGI

0.42ct D FL Oval Lab Grown Diamond

VG • D/FL • IGI LG845672309

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG845672309

Diamond specifications and retailer prices

From £293 GBP
$393 USD
As of November 1, 2026
Save £893 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,231 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 very-good cut grade and certified by IGI LG845672309 or 845672309. Listed at 11 retailers as of October 29, 2026, with a 305% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845672309
Dimensions6.10 × 4.17 × 2.62 mm
L/W Ratio1.46
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
6.10 mm4.17 mm0.42 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845672309
Side View
Table 61.0%Crown 33.8°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 62.8%

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: £535 GBP|Low: £293 GBP|High: £1,231 GBP|Avg: £750 GBP|+2.0%
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 3£460 GBP
Retailer 9£469 GBP
Retailer 2£521 GBP
Retailer 1£535 GBP
Retailer 5£632 GBP
Retailer 8£981 GBP
Retailer 7£1,043 GBP
Retailer 4£1,187 GBP
Riddles Jewelry£1,231 GBP

16 data points across 10 retailers

11 retailers£293 GBP to £1,187 GBP

B+
Cheapest Retailer
-
£293 GBP
$393 USD
Final sale: no returns
B
Retailer 2
-
£460 GBP
€587 EUR
View
B
Retailer 3
-
£469 GBP
$628 USD
View
B
Retailer 4
-
£521 GBP
View
B
Retailer 5
-
£535 GBP
ZAR 11,577 ZAR
View
B
Retailer 6
-
£545 GBP
$730 USD
View
B
Retailer 7
-
£632 GBP
$846 USD
View
B
Retailer 8
-
£981 GBP
$1,315 USD
View
B
Retailer 9
-
£1,043 GBP
CA$1,940 CAD
View
B
Retailer 10
-
£1,187 GBP
View
Most Expensive
Riddles Jewelry
1994335750 · Nov 2
£1,231 GBP
$1,649 USD
View
Price under review
10 more retailers have this diamond
Prices start from £293 GBPSave up to £893 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