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Cushion|Lab Grown|IGI

3.01ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG784687613

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG784687613

Diamond specifications and retailer prices

From £330 GBP
As of November 6, 2026
Save £2,950 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,280 GBP at Brilliant Earth · As of November 6, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784687613 or 784687613. Listed at 13 retailers as of November 6, 2026, with prices from £330 to £3,280, a £2,950 spread on the same certified stone. Brilliant Earth lists it at £3,280. 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 angle35.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784687613
Dimensions11.31 × 7.32 × 4.61 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.31 mm7.32 mm3.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784687613
Side View
Table 68.0%Crown 35.7°Girdle: MED-STKPavilion 39.6°Culet: LargeDepth 63.0%

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: Nov 6
Current: £3,280 GBP|Low: £330 GBP|High: £3,280 GBP|Avg: £840 GBP|+65.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3£330 GBP
Retailer 10£367 GBP
Retailer 6£478 GBP
Retailer 7£584 GBP
Retailer 5£596 GBP
Retailer 8£628 GBP
Retailer 12£649 GBP
Retailer 11£725 GBP
Retailer 4£738 GBP
Retailer 2£1,241 GBP
Retailer 9£1,441 GBP
Brilliant Earth£3,280 GBP

43 data points across 12 retailers

13 retailers£330 GBP to £3,280 GBP

A
Cheapest Retailer
-
£330 GBP
Final sale: no returns
A
Retailer 2
-
£367 GBP
View
A
Retailer 3
-
£478 GBP
View
A
Retailer 4
-
£584 GBP
View
A
Retailer 5
-
£596 GBP
View
B+
Retailer 6
-
£628 GBP
View
A
Retailer 7
-
£649 GBP
View
A
Retailer 8
-
£725 GBP
View
A
Retailer 9
-
£738 GBP
View
B+
Retailer 10
-
£1,207 GBP
View
B+
Retailer 11
-
£1,241 GBP
View
Retailer 12
-
£1,441 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20664997A · Nov 6
£3,280 GBP
$4,390 USD
View
12 more retailers have this diamond
Prices start from £330 GBPSave up to £2,950 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
£330 GBP