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Cushion|Lab Grown|IGI

8.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG850681797

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

Certificate IGI LG850681797

Diamond specifications and retailer prices

From £1,017 GBP
$1,362 USD
As of November 1, 2026
Save £5,081 GBP (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,098 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.09ct lab-grown cushion diamond

This 8.09ct 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 LG850681797 or 850681797. Listed at 9 retailers as of October 31, 2026, with prices from £1,017 to £6,098, a £5,081 spread on the same certified stone. Brilliant Earth lists it at £6,098. 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

8.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850681797
Dimensions11.62 × 11.50 × 7.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.62 mm11.50 mm8.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850681797
Side View
Table 65.0%Crown 34.9°Girdle: MED-THKPavilion 35.1°Culet: NoneDepth 62.5%

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 1
Current: £1,127 GBP|Low: £1,017 GBP|High: £4,708 GBP|Avg: £2,795 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3£1,017 GBP
Retailer 1£1,127 GBP
Retailer 6£1,396 GBP
Retailer 8£2,697 GBP
Retailer 2£3,203 GBP
Retailer 5£3,212 GBP
Retailer 4£4,422 GBP
Retailer 7£4,708 GBP

3 data points across 8 retailers

9 retailers£1,017 GBP to £6,098 GBP

A
Cheapest Retailer
-
£1,017 GBP
$1,362 USD
Final sale: no returns
A
Retailer 2
-
£1,127 GBP
View
B+
Retailer 3
-
£1,396 GBP
$1,870 USD
View
B+
Retailer 4
-
£2,697 GBP
$3,614 USD
View
B+
Retailer 5
-
£3,203 GBP
$4,292 USD
View
B+
Retailer 6
-
£3,212 GBP
View
B
Retailer 7
-
£4,422 GBP
$5,925 USD
View
B
Retailer 8
-
£4,708 GBP
$6,308 USD
View
Most Expensive
B
Brilliant Earth
22388794A · Oct 31
£6,098 GBP
$8,170 USD
View
8 more retailers have this diamond
Prices start from £1,017 GBPSave up to £5,081 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
8.09ct Cushion
£1,017 GBP