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Oval|Lab Grown|IGI

1.03ct D SI2 Oval Lab Grown Diamond

EX • D/SI2 • IGI LG579366178

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG579366178

Diamond specifications and retailer prices

From £217 GBP
As of November 5, 2026
Save £391 GBP (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £607 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.03ct lab-grown oval diamond

This 1.03ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG579366178 or 579366178. Listed at 7 retailers as of November 2, 2026, with prices from £217 to £607, a £391 spread on the same certified stone. MOH London lists it at £607. 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

1.03
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579366178
Dimensions8.07 × 5.84 × 3.59 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
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
8.07 mm5.84 mm1.03 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579366178
Side View
Table 58.0%Crown 31.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £607 GBP|Low: £205 GBP|High: £1,059 GBP|Avg: £329 GBP|-42.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7£217 GBP
Retailer 2£220 GBP
Retailer 5£242 GBP
Retailer 3£247 GBP
Retailer 4£359 GBP
Retailer 6£370 GBP
MOH London£607 GBP

43 data points across 7 retailers

7 retailers£217 GBP to £607 GBP

A
Cheapest Retailer
-
£217 GBP
A
Retailer 2
-
£220 GBP
View
A
Retailer 3
-
£242 GBP
View
Retailer 4
-
£247 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£359 GBP
View
B+
Retailer 6
-
£370 GBP
View
Most Expensive
B
MOH London
LG579366178 · Nov 2
£607 GBP
View
6 more retailers have this diamond
Prices start from £217 GBPSave up to £391 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
1.03ct Oval
£217 GBP