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Oval|Lab Grown|IGI

1.09ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG442066568

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG442066568

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 30, 2026
Save £2,713 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,190 GBP at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442066568 or 442066568. Listed at 11 retailers as of October 29, 2026, with prices from £478 to £3,190, a £2,713 spread on the same certified stone. MOH London lists it at £3,190. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442066568
Dimensions8.50 × 5.88 × 3.48 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.50 mm5.88 mm1.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG442066568
Side View
Table 59.5%Crown 32.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,190 GBP|Low: £478 GBP|High: £3,216 GBP|Avg: £1,528 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£478 GBP
Retailer 3£807 GBP
Retailer 6£903 GBP
Retailer 4£936 GBP
Retailer 7£1,067 GBP
Retailer 9£1,333 GBP
Retailer 5£1,490 GBP
Retailer 8£1,898 GBP
Retailer 10£2,680 GBP
MOH London£3,190 GBP

15 data points across 10 retailers

11 retailers£478 GBP to £3,190 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
B+
Retailer 2
-
£807 GBP
$1,081 USD
View
B+
Retailer 3
-
£878 GBP
$1,176 USD
View
B+
Retailer 4
-
£903 GBP
$1,210 USD
View
Final sale: no returns
B+
Retailer 5
-
£936 GBP
$1,254 USD
View
Retailer 6
-
£936 GBP
$1,254 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,067 GBP
$1,430 USD
View
B
Retailer 8
-
£1,490 GBP
$1,997 USD
View
B
Retailer 9
-
£1,754 GBP
$2,350 USD
View
B
Retailer 10
-
£1,898 GBP
$2,543 USD
View
Most Expensive
B
MOH London
LG442066568 · Oct 29
£3,190 GBP
View
10 more retailers have this diamond
Prices start from £478 GBPSave up to £2,713 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
£478 GBP