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Oval|Lab Grown|IGI

1.05ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG801606615

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG801606615

Diamond specifications and retailer prices

From £231 GBP
As of November 6, 2026
Save £404 GBP (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £635 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown oval diamond

This 1.05ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801606615 or 801606615. Listed at 6 retailers as of November 4, 2026, with prices from £231 to £635, a £404 spread on the same certified stone. MOH London lists it at £635. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801606615
Dimensions8.25 × 5.77 × 3.55 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
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
8.25 mm5.77 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI LG801606615
Side View
Table 58.0%Crown 34.8°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.5%

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 6
Current: £635 GBP|Low: £231 GBP|High: £714 GBP|Avg: £348 GBP|-10.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£231 GBP
Retailer 2£232 GBP
Retailer 3£252 GBP
Retailer 5£261 GBP
Retailer 6£388 GBP
MOH London£635 GBP

40 data points across 6 retailers

6 retailers£231 GBP to £635 GBP

A
Cheapest Retailer
-
£231 GBP
A
Retailer 2
-
£232 GBP
View
A
Retailer 3
-
£252 GBP
View
A
Retailer 4
-
£261 GBP
View
B+
Retailer 5
-
£388 GBP
View
Most Expensive
B
MOH London
LG801606615 · Nov 4
£635 GBP
View
5 more retailers have this diamond
Prices start from £231 GBPSave up to £404 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
1.05ct Oval
£231 GBP