Cushion|Lab Grown|IGI

4.34ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG815610195

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG815610195

Diamond specifications and retailer prices

From £1,982 GBP
As of October 30, 2026
Save £8,161 GBP (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £11,620 GBP at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 4.34ct lab-grown cushion diamond

This 4.34ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815610195 or 815610195. Listed at 21 retailers as of October 30, 2026, with a 412% 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

4.34
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815610195
Dimensions10.96 × 8.87 × 5.86 mm
L/W Ratio1.24
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
10.96 mm8.87 mm4.34 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815610195
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 66.1%

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 30
Current: £10,143 GBP|Low: £1,975 GBP|High: £11,270 GBP|Avg: £5,263 GBP|-10.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 13£1,982 GBP
Retailer 8£2,289 GBP
Retailer 5£2,473 GBP
Retailer 19£2,493 GBP
Retailer 18£3,109 GBP
Retailer 12£3,204 GBP
Retailer 9£3,691 GBP
Retailer 2£3,763 GBP
Retailer 4£4,095 GBP
Retailer 6£4,744 GBP
Retailer 14£5,049 GBP
Retailer 16£5,090 GBP
Retailer 17£5,303 GBP
Retailer 3£6,030 GBP
Retailer 15£6,385 GBP
Retailer 10£7,957 GBP
Retailer 7£8,268 GBP
Retailer 11£9,632 GBP
Brilliant Earth£10,143 GBP

29 data points across 19 retailers

21 retailers£1,982 GBP to £10,143 GBP

A
Cheapest Retailer
-
£1,982 GBP
A
Retailer 2
-
£2,289 GBP
$3,067 USD
View
Final sale: no returns
A
Retailer 3
-
£2,473 GBP
$3,313 USD
View
A
Retailer 4
-
£2,493 GBP
$3,340 USD
View
A
Retailer 5
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£3,109 GBP
$4,166 USD
View
A
Retailer 6
-
£3,204 GBP
View
A
Retailer 7
-
£3,691 GBP
$4,946 USD
View
A
Retailer 8
-
£3,763 GBP
€4,802 EUR
View
A
Retailer 9
-
£4,095 GBP
View
A
Retailer 10
-
£4,744 GBP
$6,356 USD
View
A
Retailer 11
-
£5,049 GBP
ZAR 109,291 ZAR
View
Retailer 12
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£5,090 GBP
A$10,492 AUD
View
Price last confirmed 9 days ago
Retailer 13
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£5,303 GBP
$7,105 USD
View
Price last confirmed 13 days ago
A
Retailer 14
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£5,958 GBP
$7,983 USD
View
A
Retailer 15
-
£6,030 GBP
$8,080 USD
View
A
Retailer 16
-
£6,385 GBP
View
B+
Retailer 17
-
£7,957 GBP
SGD 14,407 SGD
View
B+
Retailer 18
-
£8,268 GBP
$11,078 USD
View
Retailer 19
-
£9,632 GBP
A$19,855 AUD
View
Price last confirmed 23 days ago
B+
Retailer 20
-
£10,143 GBP
$13,590 USD
View
Most Expensive
Brilliant Earth
20710967A · Sep 23
£11,620 GBP
$15,570 USD
View
Price last confirmed 38 days ago
20 more retailers have this diamond
Prices start from £1,982 GBPSave up to £8,161 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
4.34ct Cushion
£1,982 GBP