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Cushion|Lab Grown|IGI

4.11ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG844621789

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG844621789

Diamond specifications and retailer prices

From £4,713 GBP
$6,315 USD
As of October 28, 2026
Save £11,983 GBP (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £16,696 GBP at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.11ct lab-grown cushion diamond

This 4.11ct 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 LG844621789 or 844621789. Listed at 10 retailers as of October 26, 2026, with prices from £4,713 to £16,696, a £11,983 spread on the same certified stone. Taylor and Hart lists it at £16,696. 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

4.11
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621789
Dimensions9.81 × 9.52 × 6.04 mm
L/W Ratio1.03
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
9.81 mm9.52 mm4.11 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621789
Side View
Table 51.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: LargeDepth 63.4%

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 28
Current: £6,003 GBP|Low: £4,713 GBP|High: £16,696 GBP|Avg: £8,171 GBP|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 27, 2026
Retailer 6£4,713 GBP
Retailer 5£5,027 GBP
Retailer 7£5,382 GBP
Retailer 4£5,798 GBP
Retailer 1£6,003 GBP
Retailer 10£6,688 GBP
Retailer 8£7,809 GBP
Retailer 2£7,952 GBP
Retailer 3£9,593 GBP
Retailer 9£13,094 GBP
Taylor and Hart£16,696 GBP

14 data points across 11 retailers

10 retailers£4,713 GBP to £16,696 GBP

A
Cheapest Retailer
-
£4,713 GBP
$6,315 USD
A
Retailer 2
-
£5,027 GBP
$6,736 USD
View
A
Retailer 3
-
£5,798 GBP
$7,769 USD
View
A
Retailer 4
-
£6,003 GBP
View
B+
Retailer 5
-
£6,688 GBP
View
B+
Retailer 6
-
£7,809 GBP
$10,463 USD
View
B+
Retailer 7
-
£7,952 GBP
$10,655 USD
View
B+
Retailer 8
-
£9,593 GBP
View
B
Retailer 9
-
£13,094 GBP
$17,544 USD
View
Most Expensive
B
Taylor and Hart
0QD3Q6C · Oct 26
£16,696 GBP
$22,371 USD
View
9 more retailers have this diamond
Prices start from £4,713 GBPSave up to £11,983 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
4.11ct Cushion
£4,713 GBP