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Cushion|Lab Grown|IGI

4.06ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG844621787

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG844621787

Diamond specifications and retailer prices

From £4,661 GBP
$6,245 USD
As of October 31, 2026
Save £11,873 GBP (72%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £16,534 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.06ct lab-grown cushion diamond

This 4.06ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844621787 or 844621787. Listed at 11 retailers as of October 30, 2026, with prices from £4,661 to £16,534, a £11,873 spread on the same certified stone. Taylor and Hart lists it at £16,534. 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
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621787
Dimensions11.47 × 8.79 × 5.36 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.47 mm8.79 mm4.06 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621787
Side View
Table 54.0%Crown 35.2°Girdle: MED-STKPavilion 37.3°Culet: LargeDepth 61.0%

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: £5,967 GBP|Low: £4,661 GBP|High: £16,534 GBP|Avg: £8,183 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 31, 2026
Retailer 6£4,661 GBP
Retailer 10£4,923 GBP
Retailer 8£5,316 GBP
Retailer 5£5,730 GBP
Retailer 1£5,967 GBP
Retailer 7£6,597 GBP
Retailer 9£7,714 GBP
Retailer 2£7,855 GBP
Retailer 3£9,519 GBP
Retailer 4£12,940 GBP
Taylor and Hart£16,534 GBP

16 data points across 11 retailers

11 retailers£4,661 GBP to £16,534 GBP

A
Cheapest Retailer
-
£4,661 GBP
$6,245 USD
A
Retailer 2
-
£4,923 GBP
$6,596 USD
View
A
Retailer 3
-
£5,316 GBP
$7,123 USD
View
Final sale: no returns
A
Retailer 4
-
£5,730 GBP
$7,678 USD
View
A
Retailer 5
-
£5,967 GBP
View
B+
Retailer 6
-
£6,597 GBP
View
B+
Retailer 7
-
£7,714 GBP
$10,336 USD
View
B+
Retailer 8
-
£7,855 GBP
$10,525 USD
View
B+
Retailer 9
-
£9,519 GBP
View
B
Retailer 10
-
£12,940 GBP
$17,338 USD
View
Most Expensive
B
Taylor and Hart
B1QY3BT · Oct 30
£16,534 GBP
$22,154 USD
View
10 more retailers have this diamond
Prices start from £4,661 GBPSave up to £11,873 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
£4,661 GBP