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Cushion|Lab Grown|IGI

3.01ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG634471007

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG634471007

Diamond specifications and retailer prices

From £1,146 GBP
$1,535 USD
As of October 31, 2026
Save £5,325 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,381 GBP at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 3.01ct lab-grown cushion diamond

This 3.01ct 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 LG634471007 or 634471007. Listed at 20 retailers as of October 31, 2026, with a 465% 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

3.01
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634471007
Dimensions8.46 × 8.11 × 5.42 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
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
8.46 mm8.11 mm3.01 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634471007
Side View
Table 60.0%Crown 38.7°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
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 31
Current: £7,381 GBP|Low: £1,146 GBP|High: £8,157 GBP|Avg: £3,233 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 7£1,146 GBP
Retailer 15£1,220 GBP
Retailer 4£1,264 GBP
Retailer 11£1,376 GBP
Retailer 2£1,699 GBP
Retailer 10£1,723 GBP
Retailer 3£1,730 GBP
Retailer 14£1,832 GBP
Retailer 18£1,990 GBP
Retailer 12£2,719 GBP
Retailer 16£2,796 GBP
Retailer 9£2,912 GBP
Retailer 5£3,379 GBP
Retailer 17£3,458 GBP
Retailer 19£3,974 GBP
Retailer 8£4,269 GBP
Retailer 13£5,646 GBP
Retailer 6£6,471 GBP
Brilliant Earth£7,381 GBP

36 data points across 19 retailers

20 retailers£1,146 GBP to £6,471 GBP

A
Cheapest Retailer
-
£1,146 GBP
$1,535 USD
Final sale: no returns
A
Retailer 2
-
£1,220 GBP
$1,635 USD
View
A
Retailer 3
-
£1,264 GBP
$1,693 USD
View
Retailer 4
-
£1,376 GBP
$1,844 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
£1,699 GBP
View
A
Retailer 6
-
£1,723 GBP
$2,308 USD
View
A
Retailer 7
-
£1,730 GBP
$2,318 USD
View
A
Retailer 8
-
£1,832 GBP
€2,338 EUR
View
A
Retailer 9
-
£1,990 GBP
$2,667 USD
View
A
Retailer 10
-
£2,719 GBP
A$5,605 AUD
View
A
Retailer 11
-
£2,796 GBP
ZAR 60,525 ZAR
View
A
Retailer 12
-
£2,912 GBP
View
A
Retailer 13
-
£3,379 GBP
$4,528 USD
View
B+
Retailer 14
-
£3,458 GBP
View
Retailer 15
-
£3,974 GBP
$5,325 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£4,269 GBP
$5,719 USD
View
B+
Retailer 17
-
£5,239 GBP
$7,020 USD
View
B+
Retailer 18
-
£5,646 GBP
A$11,638 AUD
View
B
Retailer 19
-
£6,471 GBP
$8,670 USD
View
Most Expensive
Brilliant Earth
21773779Y · Oct 14
£7,381 GBP
$9,890 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from £1,146 GBPSave up to £5,325 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
3.01ct Cushion
£1,146 GBP