Oval|Lab Grown|IGI

1.40ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG847679022

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847679022

Diamond specifications and retailer prices

From £204 GBP
As of November 2, 2026
Save £530 GBP (72%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £734 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.4ct lab-grown oval diamond

This 1.4ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847679022 or 847679022. Listed at 6 retailers as of November 1, 2026, with prices from £204 to £734, a £530 spread on the same certified stone. MOH London lists it at £734. 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

1.40
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847679022
Dimensions9.21 × 6.20 × 3.91 mm
L/W Ratio1.49
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.21 mm6.20 mm1.40 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847679022
Side View
Table 59.0%Crown 33.3°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 63.1%

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: Nov 2
Current: £734 GBP|Low: £204 GBP|High: £738 GBP|Avg: £425 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2£204 GBP
Retailer 6£213 GBP
Retailer 3£280 GBP
Retailer 4£392 GBP
Retailer 5£545 GBP
MOH London£734 GBP

13 data points across 6 retailers

6 retailers£204 GBP to £734 GBP

A
Cheapest Retailer
-
£204 GBP
B+
Retailer 2
-
£213 GBP
$285 USD
View
B+
Retailer 3
-
£280 GBP
View
B+
Retailer 4
-
£392 GBP
$525 USD
View
B
Retailer 5
-
£545 GBP
$731 USD
View
Most Expensive
B
MOH London
LG847679022 · Nov 1
£734 GBP
View
5 more retailers have this diamond
Prices start from £204 GBPSave up to £530 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
1.40ct Oval
£204 GBP