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Cushion|Lab Grown|IGI

4.04ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG818631185

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818631185

Diamond specifications and retailer prices

From £549 GBP
$735 USD
As of October 29, 2026
Save £1,214 GBP (69%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,763 GBP at Brilliance · As of October 24, 2026
View at Brilliance

About this 4.04ct lab-grown cushion diamond

This 4.04ct 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 LG818631185 or 818631185. Listed at 3 retailers as of October 24, 2026, with prices from £549 to £1,763, a £1,214 spread on the same certified stone. Brilliance lists it at £1,763. 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

4.04
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818631185
Dimensions11.20 × 8.17 × 5.56 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.20 mm8.17 mm4.04 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818631185
Side View
Table 63.0%Crown 35.7°Girdle: MED-THKPavilion 35.3°Culet: NoneDepth 68.1%

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 29
Current: £1,763 GBP|Low: £549 GBP|High: £4,388 GBP|Avg: £1,930 GBP|-16.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 2£549 GBP
Retailer 3£752 GBP
Retailer 4£999 GBP
Brilliance£1,763 GBP
Retailer 6£2,264 GBP
Retailer 5£4,388 GBP

13 data points across 6 retailers

3 retailers£549 GBP to £1,763 GBP

A
Cheapest Retailer
-
£549 GBP
$735 USD
Final sale: no returns
B+
Retailer 2
-
£752 GBP
$1,008 USD
View
Most Expensive
B+
Brilliance
D44174900 · Oct 24
£1,763 GBP
$2,362 USD
View
2 more retailers have this diamond
Prices start from £549 GBPSave up to £1,214 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
4.04ct Cushion
£549 GBP