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Oval|Lab Grown|IGI

1.09ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG700596637

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG700596637

Diamond specifications and retailer prices

From £106 GBP
As of November 5, 2026
Save £508 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £614 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown oval diamond

This 1.09ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700596637 or 700596637. Listed at 14 retailers as of November 4, 2026, with prices from £106 to £614, a £508 spread on the same certified stone. MOH London lists it at £614. 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

1.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700596637
Dimensions8.54 × 5.74 × 3.62 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.54 mm5.74 mm1.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700596637
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

Caratlytics Score

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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: £614 GBP|Low: £106 GBP|High: £732 GBP|Avg: £331 GBP|-0.8%
MOH London
Retailer 2
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Retailer 10
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Retailer 12
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Retailer 16
November 6, 2026
Retailer 13£106 GBP
Retailer 6£123 GBP
Retailer 14£131 GBP
Retailer 4£152 GBP
Retailer 9£156 GBP
Retailer 10£223 GBP
Retailer 2£234 GBP
Retailer 3£245 GBP
Retailer 16£269 GBP
Retailer 15£317 GBP
Retailer 11£385 GBP
Retailer 5£423 GBP
Retailer 12£447 GBP
Retailer 8£604 GBP
MOH London£614 GBP
Retailer 7£732 GBP

11 data points across 16 retailers

14 retailers£106 GBP to £614 GBP

A
Cheapest Retailer
-
£106 GBP
A
Retailer 2
-
£123 GBP
View
A
Retailer 3
-
£131 GBP
View
A
Retailer 4
-
£152 GBP
View
A
Retailer 5
-
£156 GBP
View
A
Retailer 6
-
£223 GBP
View
A
Retailer 7
-
£234 GBP
View
A
Retailer 8
-
£245 GBP
View
A
Retailer 9
-
£269 GBP
View
B+
Retailer 10
-
£317 GBP
View
B+
Retailer 11
-
£385 GBP
View
B+
Retailer 12
-
£423 GBP
View
B
Retailer 13
-
£447 GBP
View
Most Expensive
B
MOH London
LG700596637 · Nov 4
£614 GBP
View
13 more retailers have this diamond
Prices start from £106 GBPSave up to £508 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
1.09ct Oval
£106 GBP