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Cushion|Lab Grown|IGI

3.02ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG841603650

Shape and cutting style on the report: Cushion antique brilliant

Certificate IGI LG841603650

Diamond specifications and retailer prices

From £1,040 GBP
As of November 4, 2026
Save £2,307 GBP (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,347 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.02ct lab-grown cushion diamond

This 3.02ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG841603650 or 841603650. Listed at 5 retailers as of November 4, 2026, with prices from £1,040 to £3,347, a £2,307 spread on the same certified stone. Brilliant Earth lists it at £3,347. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.02
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841603650
Dimensions10.29 × 7.40 × 5.05 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm7.40 mm3.02 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841603650
Side View
Table 53.0%Crown 39.1°Girdle: STK-THKPavilion 40.3°Culet: LargeDepth 68.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,233 GBP|Low: £1,040 GBP|High: £2,885 GBP|Avg: £1,923 GBP|-19.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2£1,040 GBP
Retailer 1£1,233 GBP
Retailer 3£2,338 GBP
Retailer 4£2,885 GBP

5 data points across 4 retailers

5 retailers£1,040 GBP to £3,347 GBP

B+
Cheapest Retailer
-
£1,040 GBP
B+
Retailer 2
-
£1,233 GBP
View
B
Retailer 3
-
£2,338 GBP
View
C
Retailer 4
-
£2,885 GBP
View
Most Expensive
C
Brilliant Earth
22434637Y · Nov 6
£3,347 GBP
$4,480 USD
View
4 more retailers have this diamond
Prices start from £1,040 GBPSave up to £2,307 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.

B+
3.02ct Cushion
£1,040 GBP