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Oval|Lab Grown|IGI

4.12ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG800631859

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG800631859

Diamond specifications and retailer prices

From £2,352 GBP
$3,151 USD
As of November 1, 2026
Save £9,067 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £11,419 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.12ct lab-grown oval diamond

This 4.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800631859 or 800631859. Listed at 10 retailers as of October 31, 2026, with prices from £2,352 to £11,419, a £9,067 spread on the same certified stone. Brilliant Earth lists it at £11,419. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.12
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800631859
Dimensions13.15 × 8.97 × 5.54 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
13.15 mm8.97 mm4.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800631859
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £11,419 GBP|Low: £2,352 GBP|High: £15,554 GBP|Avg: £5,572 GBP|-26.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6£2,352 GBP
Retailer 9£2,895 GBP
Retailer 3£3,090 GBP
Retailer 5£3,297 GBP
Retailer 7£4,019 GBP
Retailer 4£4,228 GBP
Retailer 10£5,471 GBP
Retailer 2£6,176 GBP
Retailer 8£8,043 GBP
Brilliant Earth£11,419 GBP

30 data points across 10 retailers

10 retailers£2,352 GBP to £11,419 GBP

A
Cheapest Retailer
-
£2,352 GBP
$3,151 USD
Retailer 2
-
£2,895 GBP
HK$30,300 HKD
View
Price last confirmed 43 days ago
A
Retailer 3
-
£3,090 GBP
View
A
Retailer 4
-
£3,297 GBP
$4,418 USD
View
A
Retailer 5
-
£4,019 GBP
$5,385 USD
View
A
Retailer 6
-
£4,228 GBP
€5,395 EUR
View
Retailer 7
-
£5,471 GBP
$7,331 USD
View
Price last confirmed 83 days ago
B+
Retailer 8
-
£6,176 GBP
View
B+
Retailer 9
-
£8,043 GBP
$10,777 USD
View
Most Expensive
B
Brilliant Earth
19994644A · Oct 31
£11,419 GBP
$15,300 USD
View
9 more retailers have this diamond
Prices start from £2,352 GBPSave up to £9,067 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
4.12ct Oval
£2,352 GBP