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Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG696511934

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

Certificate IGI LG696511934

Diamond specifications and retailer prices

From £1,062 GBP
$1,423 USD
As of November 2, 2026
Save £4,762 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £8,180 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG696511934 or 696511934. Listed at 16 retailers as of October 30, 2026, with a 448% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.09
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696511934
Dimensions9.33 × 9.15 × 6.13 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.33 mm9.15 mm4.09 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696511934
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 67.0%

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: £2,126 GBP|Low: £1,062 GBP|High: £4,339 GBP|Avg: £2,250 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10£1,062 GBP
Retailer 9£1,278 GBP
Retailer 4£1,338 GBP
Retailer 8£1,485 GBP
Retailer 6£2,006 GBP
Retailer 2£2,026 GBP
Retailer 1£2,126 GBP
Retailer 7£3,191 GBP
Retailer 5£3,212 GBP
Retailer 3£4,281 GBP

37 data points across 10 retailers

16 retailers£1,062 GBP to £5,824 GBP

A
Cheapest Retailer
-
£1,062 GBP
$1,423 USD
B+
Retailer 2
-
£1,118 GBP
$1,498 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,278 GBP
$1,713 USD
View
A
Retailer 4
-
£1,338 GBP
View
B+
Retailer 5
-
£1,485 GBP
$1,990 USD
View
B+
Retailer 6
-
£2,006 GBP
€2,560 EUR
View
B
Retailer 7
-
£2,026 GBP
$2,714 USD
View
B+
Retailer 8
-
£2,126 GBP
View
B
Retailer 9
-
£3,105 GBP
View
B
Retailer 10
-
£3,191 GBP
ZAR 69,078 ZAR
View
B
Retailer 11
-
£3,212 GBP
A$6,621 AUD
View
B
Retailer 12
-
£3,552 GBP
$4,760 USD
View
B
Retailer 13
-
£4,281 GBP
View
B
Retailer 14
-
£5,266 GBP
$7,056 USD
View
B
Retailer 15
-
£5,824 GBP
$7,803 USD
View
Most Expensive
Do Amore Diamonds
31-LGD689639 · Nov 2
£8,180 GBP
$10,960 USD
View
Price under review
15 more retailers have this diamond
Prices start from £1,062 GBPSave up to £4,762 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
4.09ct Cushion
£1,062 GBP