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Oval|Lab Grown|IGI

1.13ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG445038637

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038637

Diamond specifications and retailer prices

From £480 GBP
As of November 5, 2026
Save £1,864 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,344 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.13ct lab-grown oval diamond

This 1.13ct 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 LG445038637 or 445038637. Listed at 11 retailers as of November 3, 2026, with prices from £480 to £2,344, a £1,864 spread on the same certified stone. MOH London lists it at £2,344. 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

1.13
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038637
Dimensions8.20 × 5.93 × 3.68 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.20 mm5.93 mm1.13 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038637
Side View
Table 59.5%Crown 35.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.1%

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: £2,344 GBP|Low: £460 GBP|High: £2,372 GBP|Avg: £978 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£480 GBP
Retailer 2£493 GBP
Retailer 9£536 GBP
Retailer 7£557 GBP
Retailer 10£557 GBP
Retailer 4£687 GBP
Retailer 11£900 GBP
Retailer 8£909 GBP
Retailer 5£1,421 GBP
Retailer 3£1,593 GBP
MOH London£2,344 GBP

18 data points across 11 retailers

11 retailers£480 GBP to £2,344 GBP

A
Cheapest Retailer
-
£480 GBP
A
Retailer 2
-
£493 GBP
View
A
Retailer 3
-
£522 GBP
View
A
Retailer 4
-
£536 GBP
View
Final sale: no returns
Retailer 5
-
£557 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£557 GBP
View
A
Retailer 7
-
£687 GBP
View
B+
Retailer 8
-
£909 GBP
View
B
Retailer 9
-
£1,421 GBP
View
B
Retailer 10
-
£1,564 GBP
View
Most Expensive
B
MOH London
LG445038637 · Nov 3
£2,344 GBP
View
10 more retailers have this diamond
Prices start from £480 GBPSave up to £1,864 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
1.13ct Oval
£480 GBP