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Cushion|Lab Grown|IGI

4.06ct F VS2 Cushion Lab Grown Diamond

EX • F/VS2 • IGI LG818604727

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818604727

Diamond specifications and retailer prices

From £505 GBP
$676 USD
As of October 31, 2026
Save £1,313 GBP (72%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,870 GBP at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 4.06ct lab-grown cushion diamond

This 4.06ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818604727 or 818604727. Listed at 4 retailers as of October 31, 2026, with a 260% 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
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818604727
Dimensions11.00 × 8.33 × 5.58 mm
L/W Ratio1.32
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.00 mm8.33 mm4.06 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818604727
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 38.6°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: Oct 31
Current: £1,870 GBP|Low: £505 GBP|High: £3,709 GBP|Avg: £1,833 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3£505 GBP
Retailer 4£701 GBP
Retailer 6£873 GBP
Retailer 2£1,817 GBP
Rare Carat£1,870 GBP
Retailer 8£1,933 GBP
Retailer 5£2,753 GBP
Retailer 7£3,709 GBP

15 data points across 8 retailers

4 retailers£505 GBP to £1,817 GBP

A
Cheapest Retailer
-
£505 GBP
$676 USD
Final sale: no returns
B+
Retailer 2
-
£701 GBP
$939 USD
View
B
Retailer 3
-
£1,817 GBP
$2,435 USD
View
Most Expensive
Rare Carat
818604727 · Oct 14
£1,870 GBP
$2,505 USD
View
Price last confirmed 18 days ago
3 more retailers have this diamond
Prices start from £505 GBPSave up to £1,313 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
£505 GBP