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Cushion|Lab Grown|IGI

1.09ct F FL Cushion Lab Grown Diamond

EX • F/FL • IGI LG783640238

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG783640238

Diamond specifications and retailer prices

From £822 GBP
As of November 5, 2026
Save £1,914 GBP (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,735 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG783640238 or 783640238. Listed at 12 retailers as of November 5, 2026, with prices from £822 to £2,735, a £1,914 spread on the same certified stone. MOH London lists it at £2,735. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
F
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.7°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783640238
Dimensions7.94 × 5.17 × 3.33 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.94 mm5.17 mm1.09 ctF / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783640238
Side View
Table 59.0%Crown 29.7°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,735 GBP|Low: £732 GBP|High: £2,779 GBP|Avg: £1,472 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9£732 GBP
Retailer 2£822 GBP
Retailer 6£862 GBP
Retailer 11£947 GBP
Retailer 5£1,113 GBP
Retailer 12£1,177 GBP
Retailer 7£1,214 GBP
Retailer 8£1,330 GBP
Retailer 10£1,560 GBP
Retailer 3£2,026 GBP
Retailer 4£2,536 GBP
MOH London£2,735 GBP

39 data points across 12 retailers

12 retailers£822 GBP to £2,735 GBP

Retailer 1
-
£732 GBP
Price last confirmed 19 days ago
B+
Retailer 2
-
£822 GBP
View
B+
Retailer 3
-
£862 GBP
View
Retailer 4
-
£945 GBP
View
Price last confirmed 108 days ago
Retailer 5
-
£947 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£1,113 GBP
View
B
Retailer 7
-
£1,177 GBP
View
Retailer 8
-
£1,330 GBP
View
Price last confirmed 17 days ago
Retailer 9
-
£1,560 GBP
View
Price last confirmed 15 days ago
Retailer 10
-
£2,026 GBP
View
Price last confirmed 15 days ago
B
Retailer 11
-
£2,536 GBP
View
Most Expensive
B
MOH London
LG783640238 · Nov 5
£2,735 GBP
View
11 more retailers have this diamond
Prices start from £822 GBPSave up to £1,914 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.

B+
1.09ct Cushion
£822 GBP