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Cushion|Lab Grown|IGI

5.11ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG804659238

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659238

Diamond specifications and retailer prices

From £5,498 GBP
$7,322 USD
As of October 29, 2026
Save £19,436 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £24,935 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.11ct lab-grown cushion diamond

This 5.11ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659238 or 804659238. Listed at 14 retailers as of October 29, 2026, with prices from £5,498 to £24,935, a £19,436 spread on the same certified stone. With Clarity lists it at £24,935. 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

5.11
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659238
Dimensions11.05 × 9.32 × 6.17 mm
L/W Ratio1.19
Girdle conditionFaceted
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
11.05 mm9.32 mm5.11 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659238
Side View
Table 63.0%Crown 37.7°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 66.2%

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 29
Current: £7,570 GBP|Low: £5,498 GBP|High: £24,935 GBP|Avg: £12,248 GBP|-14.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 30, 2026
Retailer 10£5,498 GBP
Retailer 13£6,433 GBP
Retailer 2£6,690 GBP
Retailer 12£7,337 GBP
Retailer 1£7,570 GBP
Retailer 9£7,716 GBP
Retailer 7£10,342 GBP
Retailer 3£11,237 GBP
Retailer 8£12,148 GBP
Retailer 6£12,503 GBP
Retailer 5£15,439 GBP
Retailer 11£16,884 GBP
Retailer 4£20,967 GBP
With Clarity£24,935 GBP

39 data points across 14 retailers

14 retailers£5,498 GBP to £24,935 GBP

A
Cheapest Retailer
-
£5,498 GBP
$7,322 USD
A
Retailer 2
-
£6,433 GBP
$8,567 USD
View
A
Retailer 3
-
£6,690 GBP
HK$69,600 HKD
View
A
Retailer 4
-
£7,337 GBP
$9,770 USD
View
A
Retailer 5
-
£7,570 GBP
View
Retailer 6
-
£7,716 GBP
$10,275 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
£10,342 GBP
€13,116 EUR
View
A
Retailer 8
-
£11,237 GBP
$14,964 USD
View
A
Retailer 9
-
£12,148 GBP
View
B+
Retailer 10
-
£12,503 GBP
ZAR 268,993 ZAR
View
B+
Retailer 11
-
£15,439 GBP
$20,560 USD
View
B+
Retailer 12
-
£16,884 GBP
$22,484 USD
View
B
Retailer 13
-
£20,967 GBP
$27,922 USD
View
Most Expensive
B
With Clarity
804659238 · Oct 30
£24,935 GBP
$33,205 USD
View
13 more retailers have this diamond
Prices start from £5,498 GBPSave up to £19,436 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
5.11ct Cushion
£5,498 GBP