CaratHunter
Plans
Oval|Lab Grown|IGI

0.40ct E SI1 Oval Lab Grown Diamond

GD • E/SI1 • IGI LG577307225

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG577307225

Diamond specifications and retailer prices

From £211 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: £211 GBP at MD Diamonds and Jewellers
View at MD Diamonds and Jewellers

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG577307225 or 577307225. Listed at 2 retailers as of October 29, 2026. 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

0.40
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577307225
Dimensions5.89 × 4.17 × 2.61 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
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
5.89 mm4.17 mm0.40 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577307225
Side View
Table 61.0%Crown 35°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £136 GBP|Low: £56 GBP|High: £443 GBP|Avg: £203 GBP|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 10, 2026
Retailer 1£136 GBP
Retailer 5£149 GBP
Retailer 4£163 GBP
Retailer 2£231 GBP
Retailer 3£254 GBP
Retailer 6£336 GBP

86 data points across 6 retailers

2 retailers

Retailer 1
-
£149 GBP
$199 USD
Price last confirmed 73 days ago
Most Expensive
B
MD Diamonds and Jewellers
LG577307225 · Oct 29
£211 GBP
View
1 more retailer has this diamond

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
0.40ct Oval
£211 GBP