Oval|Lab Grown|IGI

3.11ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG632450386

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG632450386

Diamond specifications and retailer prices

From £241 GBP
As of November 6, 2026
Save £1,050 GBP (81%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,291 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.11ct lab-grown oval diamond

This 3.11ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG632450386 or 632450386. Listed at 6 retailers as of November 1, 2026, with prices from £241 to £1,291, a £1,050 spread on the same certified stone. MOH London lists it at £1,291. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.11
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632450386
Dimensions12.06 × 8.08 × 5.03 mm
L/W Ratio1.49
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.06 mm8.08 mm3.11 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632450386
Side View
Table 61.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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 6
Current: £1,291 GBP|Low: £241 GBP|High: £2,667 GBP|Avg: £1,071 GBP|-8.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£241 GBP
Retailer 2£280 GBP
Retailer 6£484 GBP
Retailer 8£687 GBP
Retailer 3£878 GBP
Retailer 5£1,062 GBP
MOH London£1,291 GBP
Retailer 7£2,667 GBP

15 data points across 8 retailers

6 retailers£241 GBP to £1,291 GBP

A
Cheapest Retailer
-
£241 GBP
A
Retailer 2
-
£280 GBP
View
B+
Retailer 3
-
£484 GBP
View
A
Retailer 4
-
£878 GBP
View
B+
Retailer 5
-
£1,062 GBP
View
Most Expensive
B+
MOH London
LG632450386 · Nov 1
£1,291 GBP
View
5 more retailers have this diamond
Prices start from £241 GBPSave up to £1,050 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
3.11ct Oval
£241 GBP