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Cushion|Lab Grown|IGI

4.38ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG799636509

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799636509

Diamond specifications and retailer prices

From £589 GBP
As of November 2, 2026
Save £3,360 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,948 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.38ct lab-grown cushion diamond

This 4.38ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG799636509 or 799636509. Listed at 22 retailers as of October 31, 2026, with prices from £589 to £3,948, a £3,360 spread on the same certified stone. Brilliant Earth lists it at £3,948. 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

4.38
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799636509
Dimensions10.89 × 8.05 × 5.56 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.89 mm8.05 mm4.38 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799636509
Side View
Table 63.0%Crown 35.1°Girdle: ThickPavilion 36.3°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
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 2
Current: £3,948 GBP|Low: £588 GBP|High: £3,948 GBP|Avg: £1,735 GBP
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
November 2, 2026
Retailer 2£589 GBP
Retailer 13£791 GBP
Retailer 3£944 GBP
Retailer 6£1,002 GBP
Retailer 8£1,049 GBP
Retailer 11£1,404 GBP
Retailer 10£1,413 GBP
Retailer 12£1,428 GBP
Retailer 5£2,143 GBP
Retailer 7£2,472 GBP
Retailer 9£2,513 GBP
Retailer 4£2,620 GBP
Brilliant Earth£3,948 GBP

35 data points across 13 retailers

22 retailers£589 GBP to £3,948 GBP

A
Cheapest Retailer
-
£589 GBP
A
Retailer 2
-
£764 GBP
HK$8,000 HKD
View
A
Retailer 3
-
£791 GBP
$1,060 USD
View
A
Retailer 4
-
£922 GBP
$1,235 USD
View
B+
Retailer 5
-
£944 GBP
$1,265 USD
View
A
Retailer 6
-
£1,001 GBP
€1,277 EUR
View
A
Retailer 7
-
£1,002 GBP
View
A
Retailer 8
-
£1,049 GBP
€1,338 EUR
View
A
Retailer 9
-
£1,404 GBP
ZAR 30,386 ZAR
View
A
Retailer 10
-
£1,413 GBP
A$2,913 AUD
View
A
Retailer 11
-
£1,428 GBP
$1,914 USD
View
A
Retailer 12
-
£1,490 GBP
$1,997 USD
View
B+
Retailer 13
-
£2,047 GBP
View
B+
Retailer 14
-
£2,143 GBP
$2,872 USD
View
B+
Retailer 15
-
£2,218 GBP
SGD 4,016 SGD
View
B+
Retailer 16
-
£2,229 GBP
$2,987 USD
View
B+
Retailer 17
-
£2,277 GBP
$3,051 USD
View
B+
Retailer 18
-
£2,472 GBP
View
B+
Retailer 19
-
£2,513 GBP
A$5,181 AUD
View
Retailer 20
-
£2,620 GBP
$3,510 USD
View
Price last confirmed 18 days ago
B
Retailer 21
-
£3,144 GBP
$4,212 USD
View
Most Expensive
B
Brilliant Earth
20167006A · Oct 31
£3,948 GBP
$5,290 USD
View
21 more retailers have this diamond
Prices start from £589 GBPSave up to £3,360 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
4.38ct Cushion
£589 GBP