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Cushion|Lab Grown|IGI

11.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG733556971

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG733556971

Diamond specifications and retailer prices

From £2,177 GBP
As of November 2, 2026
Save £13,487 GBP (86%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £15,664 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 11.09ct lab-grown cushion diamond

This 11.09ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG733556971 or 733556971. Listed at 8 retailers as of November 2, 2026, with prices from £2,177 to £15,664, a £13,487 spread on the same certified stone. Brilliant Earth lists it at £15,664. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733556971
Dimensions12.49 × 12.34 × 8.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.49 mm12.34 mm11.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733556971
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 66.8%

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: Nov 2
Current: £15,664 GBP|Low: £2,176 GBP|High: £16,148 GBP|Avg: £6,482 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 2£2,177 GBP
Retailer 6£3,010 GBP
Retailer 15£3,034 GBP
Retailer 14£3,402 GBP
Retailer 11£3,818 GBP
Retailer 9£3,819 GBP
Retailer 4£4,054 GBP
Retailer 8£5,031 GBP
Retailer 13£6,029 GBP
Retailer 12£6,691 GBP
Retailer 3£7,456 GBP
Retailer 7£7,695 GBP
Retailer 5£9,562 GBP
Retailer 10£14,561 GBP
Brilliant Earth£15,664 GBP

32 data points across 15 retailers

8 retailers£2,177 GBP to £15,664 GBP

A
Cheapest Retailer
-
£2,177 GBP
B+
Retailer 2
-
£3,818 GBP
$5,124 USD
View
B+
Retailer 3
-
£3,819 GBP
$5,125 USD
View
B+
Retailer 4
-
£5,031 GBP
A$10,386 AUD
View
B
Retailer 5
-
£6,691 GBP
$8,979 USD
View
B
Retailer 6
-
£7,023 GBP
$9,425 USD
View
B
Retailer 7
-
£14,561 GBP
$19,540 USD
View
Most Expensive
B
Brilliant Earth
20924949Y · Nov 2
£15,664 GBP
$21,020 USD
View
7 more retailers have this diamond
Prices start from £2,177 GBPSave up to £13,487 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
11.09ct Cushion
£2,177 GBP