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Oval|Lab Grown|IGI

1.03ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG436074842

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074842

Diamond specifications and retailer prices

From £439 GBP
As of November 5, 2026
Save £1,918 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,357 GBP at MOH London · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074842 or 436074842. Listed at 11 retailers as of November 5, 2026, with prices from £439 to £2,357, a £1,918 spread on the same certified stone. MOH London lists it at £2,357. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074842
Dimensions7.92 × 5.60 × 3.50 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.92 mm5.60 mm1.03 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436074842
Side View
Table 57.5%Crown 35.1°Girdle: STK-VTKPavilion 40.9°Culet: NoneDepth 62.5%

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 5
Current: £2,357 GBP|Low: £439 GBP|High: £2,392 GBP|Avg: £975 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4£439 GBP
Retailer 2£441 GBP
Retailer 7£492 GBP
Retailer 5£545 GBP
Retailer 8£643 GBP
Retailer 6£836 GBP
Retailer 9£861 GBP
Retailer 3£1,351 GBP
Retailer 10£1,458 GBP
MOH London£2,357 GBP

16 data points across 10 retailers

11 retailers£439 GBP to £2,357 GBP

A
Cheapest Retailer
-
£439 GBP
A
Retailer 2
-
£441 GBP
View
A
Retailer 3
-
£492 GBP
View
Final sale: no returns
A
Retailer 4
-
£492 GBP
View
Retailer 5
-
£545 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£545 GBP
View
A
Retailer 7
-
£643 GBP
View
B+
Retailer 8
-
£836 GBP
View
B
Retailer 9
-
£1,351 GBP
View
B
Retailer 10
-
£1,432 GBP
View
Most Expensive
B
MOH London
LG436074842 · Nov 5
£2,357 GBP
View
10 more retailers have this diamond
Prices start from £439 GBPSave up to £1,918 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
£439 GBP