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Oval|Lab Grown|IGI

0.40ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG782652238

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG782652238

Diamond specifications and retailer prices

From £117 GBP
As of October 26, 2026
Save £410 GBP (78%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £527 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG782652238 or 782652238. Listed at 5 retailers as of October 25, 2026, with prices from £117 to £527, a £410 spread on the same certified stone. MOH London lists it at £527. 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

0.40
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782652238
Dimensions6.11 × 4.19 × 2.54 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
6.11 mm4.19 mm0.40 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG782652238
Side View
Table 62.0%Crown 35.5°Girdle: THN-STKPavilion 40.2°CuletDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: £527 GBP|Low: £116 GBP|High: £607 GBP|Avg: £267 GBP|-13.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 26, 2026
Retailer 2£117 GBP
Retailer 4£159 GBP
Retailer 3£208 GBP
Retailer 5£275 GBP
MOH London£527 GBP

10 data points across 5 retailers

5 retailers£117 GBP to £527 GBP

A
Cheapest Retailer
-
£117 GBP
A
Retailer 2
-
£159 GBP
$213 USD
View
B+
Retailer 3
-
£208 GBP
View
B
Retailer 4
-
£275 GBP
$369 USD
View
Most Expensive
B
MOH London
LG782652238 · Oct 25
£527 GBP
View
4 more retailers have this diamond
Prices start from £117 GBPSave up to £410 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
0.40ct Oval
£117 GBP