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Cushion|Lab Grown|IGI

4.06ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG788601262

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

Certificate IGI LG788601262

Diamond specifications and retailer prices

From £499 GBP
$669 USD
As of October 27, 2026
Save £2,561 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,254 GBP at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 4.06ct lab-grown cushion diamond

This 4.06ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG788601262 or 788601262. Listed at 19 retailers as of October 27, 2026, with a 513% 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

4.06
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788601262
Dimensions9.02 × 9.34 × 5.88 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.02 mm9.34 mm4.06 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788601262
Side View
Table 63.0%Crown 33.8°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 65.2%

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: Oct 27
Current: £3,060 GBP|Low: £499 GBP|High: £3,157 GBP|Avg: £1,551 GBP|-3.1%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
October 29, 2026
Retailer 6£499 GBP
Retailer 3£515 GBP
Retailer 15£602 GBP
Retailer 4£649 GBP
Retailer 9£787 GBP
Retailer 2£801 GBP
Retailer 17£849 GBP
Retailer 13£860 GBP
Retailer 18£1,200 GBP
Retailer 8£1,431 GBP
Retailer 10£1,615 GBP
Retailer 12£1,732 GBP
Retailer 5£1,767 GBP
Retailer 7£2,316 GBP
Retailer 16£2,321 GBP
Retailer 14£2,406 GBP
Retailer 11£2,415 GBP
Brilliant Earth£3,060 GBP

37 data points across 18 retailers

19 retailers£499 GBP to £3,060 GBP

A
Cheapest Retailer
-
£499 GBP
$669 USD
Final sale: no returns
Retailer 2
-
£515 GBP
View
Price last confirmed 17 days ago
A
Retailer 3
-
£602 GBP
HK$6,300 HKD
View
A
Retailer 4
-
£649 GBP
$870 USD
View
A
Retailer 5
-
£787 GBP
$1,054 USD
View
A
Retailer 6
-
£801 GBP
€1,022 EUR
View
B+
Retailer 7
-
£849 GBP
$1,137 USD
View
A
Retailer 8
-
£860 GBP
View
A
Retailer 9
-
£1,200 GBP
$1,608 USD
View
A
Retailer 10
-
£1,431 GBP
$1,917 USD
View
Retailer 11
-
£1,615 GBP
View
Price last confirmed 17 days ago
B+
Retailer 12
-
£1,732 GBP
SGD 3,136 SGD
View
B+
Retailer 13
-
£1,767 GBP
$2,367 USD
View
Retailer 14
-
£2,316 GBP
A$4,774 AUD
View
Price last confirmed 22 days ago
Retailer 15
-
£2,321 GBP
$3,110 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
£2,406 GBP
View
B
Retailer 17
-
£2,415 GBP
$3,236 USD
View
B
Retailer 18
-
£3,060 GBP
$4,100 USD
View
Most Expensive
Brilliant Earth
18476621A · Oct 17
£3,254 GBP
$4,360 USD
View
Price last confirmed 13 days ago
18 more retailers have this diamond
Prices start from £499 GBPSave up to £2,561 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
4.06ct Cushion
£499 GBP