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Cushion|Lab Grown|IGI

3.01ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG659462347

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG659462347

Diamond specifications and retailer prices

From £344 GBP
As of November 6, 2026
Save £1,121 GBP (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,464 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG659462347 or 659462347. Listed at 10 retailers as of November 1, 2026, with prices from £344 to £1,464, a £1,121 spread on the same certified stone. Rare Carat lists it at £1,464. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659462347
Dimensions9.45 × 7.80 × 5.29 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.45 mm7.80 mm3.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659462347
Side View
Table 63.0%Crown 34.5°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 67.8%

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: Nov 6
Current: £1,464 GBP|Low: £344 GBP|High: £3,444 GBP|Avg: £1,104 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10£344 GBP
Retailer 5£377 GBP
Retailer 8£422 GBP
Retailer 12£499 GBP
Retailer 2£502 GBP
Retailer 9£545 GBP
Retailer 6£548 GBP
Retailer 11£721 GBP
Retailer 7£1,239 GBP
Rare Carat£1,464 GBP
Retailer 3£2,966 GBP
Retailer 4£3,444 GBP

10 data points across 12 retailers

10 retailers£344 GBP to £1,464 GBP

A
Cheapest Retailer
-
£344 GBP
A
Retailer 2
-
£377 GBP
View
A
Retailer 3
-
£422 GBP
View
B+
Retailer 4
-
£499 GBP
View
A
Retailer 5
-
£502 GBP
View
A
Retailer 6
-
£545 GBP
View
A
Retailer 7
-
£548 GBP
View
A
Retailer 8
-
£721 GBP
View
B+
Retailer 9
-
£1,239 GBP
View
Most Expensive
B
Rare Carat
KI3474623KF659 · Nov 1
£1,464 GBP
$1,960 USD
View
9 more retailers have this diamond
Prices start from £344 GBPSave up to £1,121 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
£344 GBP